Merge 176cb2e29c into be97512ec2

- removed support for `projects` as the feature was very incomplete and it served little purpose
- added support for common settings between jobs using `~~shared-settings` as a key in the config
- cleaned up some items that have long bugged me
  - better reuse of code
  - better variable naming
  - improved flow and readability
  - formatting to the logs

.github/FUNDING.yml

@@ -0,0 +1,3 @@
+github: [SimplicityGuy]
+ko_fi: robertwlodarczyk
+custom: [paypal.me/RWlodarczyk]

.github/workflows/build.yml

@@ -0,0 +1,75 @@
+---
+name: crontab
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+  schedule:
+    - cron: '0 1 * * 6'
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.actor }}/crontab
+
+jobs:
+  build-crontab:
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout repository.
+        uses: actions/checkout@v3
+        with:
+          submodules: true
+
+      - name: Log in to the GitHub Container Registry.
+        if: github.event_name != 'pull_request'
+        uses: docker/login-action@v2
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GHCR_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker.
+        id: meta
+        uses: docker/metadata-action@v4
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          tags: |
+            type=raw,value=latest,enable={{is_default_branch}}
+            type=ref,event=branch
+            type=ref,event=pr
+            type=schedule,pattern={{date 'YYYYMMDD'}}
+
+      - name: Set up QEMU.
+        uses: docker/setup-qemu-action@v2
+
+      - name: Set up Docker Buildx.
+        uses: docker/setup-buildx-action@v2
+        with:
+          platforms: linux/amd64
+
+      - name: Build and push Docker image to GitHub Container Registry.
+        uses: docker/build-push-action@v4
+        with:
+          context: .
+          platforms: linux/amd64
+          push: ${{ github.event_name != 'pull_request' }}
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          provenance: true
+          sbom: true
+
+      - name: Send notification to Discord.
+        uses: sarisia/actions-status-discord@v1.12.0
+        if: always()
+        with:
+          webhook: ${{ secrets.DISCORD_WEBHOOK }}

.github/workflows/cleanup.yml

@@ -0,0 +1,39 @@
+---
+name: cleanup
+
+on:
+  schedule:
+    - cron: '0 0 15 * *'
+
+env:
+  IMAGE_NAME: ${{ github.actor }}/docker-crontab
+
+jobs:
+  cleanup-docker-crontab:
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Delete Docker images older than a month.
+        id: cleanup-images
+        uses: snok/container-retention-policy@v2
+        with:
+          account-type: personal
+          cut-off: One month ago UTC
+          keep-at-least: 4
+          skip-tags: latest
+          image-names: ${{ env.IMAGE_NAME }}
+          token: ${{ secrets.GHCR_TOKEN }}
+
+      - name: Send notification to Discord.
+        uses: sarisia/actions-status-discord@v1.12.0
+        if: always()
+        with:
+          title: ${{ env.IMAGE_NAME }}
+          description: |
+            succeded cleanup : ${{ steps.cleanup-images.outputs.deleted }}
+            failed cleanup   : ${{ steps.cleanup-images.outputs.failed }}
+          webhook: ${{ secrets.DISCORD_WEBHOOK }}

.gitignore

@@ -1,5 +1,10 @@
 .idea
 *.iml
+.vscode
+.DS_Store
 
-home_dir
 config.json
+config.working.json
+
+jobs/
+projects/

.pre-commit-config.yaml

@@ -0,0 +1,32 @@
+---
+repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: cef0300fd0fc4d2a87a85fa2093c6b283ea36f4b  # frozen: v5.0.0
+    hooks:
+      - id: check-added-large-files
+      - id: check-executables-have-shebangs
+      - id: check-merge-conflict
+      - id: check-shebang-scripts-are-executable
+      - id: check-yaml
+      - id: detect-aws-credentials
+      - id: detect-private-key
+      - id: end-of-file-fixer
+      - id: mixed-line-ending
+      - id: trailing-whitespace
+
+  - repo: https://github.com/python-jsonschema/check-jsonschema
+    rev: cb3c2be894b151dff143b1baf6acbd55f2b7faed  # frozen: 0.30.0
+    hooks:
+      - id: check-github-workflows
+
+  - repo: https://github.com/executablebooks/mdformat
+    rev: e20b1ac5acb8aba0b49d3a9109c6e6b58684ee83  # frozen: 0.7.21
+    hooks:
+      - id: mdformat
+        additional_dependencies:
+          - mdformat-gfm
+
+  - repo: https://github.com/hadolint/hadolint
+    rev: c3dc18df7a501f02a560a2cc7ba3c69a85ca01d3  # frozen: v2.13.1-beta
+    hooks:
+      - id: hadolint

Dockerfile

@@ -1,13 +1,61 @@
-FROM library/docker:stable
+#hadolint ignore=DL3007
+FROM alpine:latest AS builder
+
+LABEL org.opencontainers.image.title="crontab builder" \
+      org.opencontainers.image.description="crontab builder" \
+      org.opencontainers.image.authors="robert@simplicityguy.com" \
+      org.opencontainers.image.source="https://github.com/SimplicityGuy/alertmanager-discord/blob/main/Dockerfile" \
+      org.opencontainers.image.licenses="MIT" \
+      org.opencontainers.image.created="$(date +'%Y-%m-%d')" \
+      org.opencontainers.image.base.name="docker.io/library/alpine"
+
+ENV RQ_VERSION=1.0.2
+WORKDIR /usr/bin/rq/
+
+#hadolint ignore=DL3018
+RUN apk update --quiet && \
+    apk upgrade --quiet && \
+    apk add --quiet --no-cache \
+        upx && \
+    rm /var/cache/apk/* && \
+    wget --quiet https://github.com/dflemstr/rq/releases/download/v${RQ_VERSION}/rq-v${RQ_VERSION}-x86_64-unknown-linux-musl.tar.gz && \
+    tar -xvf rq-v${RQ_VERSION}-x86_64-unknown-linux-musl.tar.gz && \
+    upx --brute rq
+
+#hadolint ignore=DL3007
+FROM docker:latest AS release
+
+LABEL org.opencontainers.image.title="crontab" \
+      org.opencontainers.image.description="A docker job scheduler (aka crontab for docker)." \
+      org.opencontainers.image.authors="robert@simplicityguy.com" \
+      org.opencontainers.image.source="https://github.com/SimplicityGuy/docker-crontab/blob/main/Dockerfile" \
+      org.opencontainers.image.licenses="MIT" \
+      org.opencontainers.image.created="$(date +'%Y-%m-%d')" \
+      org.opencontainers.image.base.name="docker.io/library/docker"
 
 ENV HOME_DIR=/opt/crontab
-RUN apk add --no-cache --virtual .run-deps bash jq \
-    && mkdir -p ${HOME_DIR}/jobs ${HOME_DIR}/projects
 
-COPY docker-entrypoint /
-ENTRYPOINT ["/docker-entrypoint"]
+#hadolint ignore=DL3018
+RUN apk update --quiet && \
+    apk upgrade --quiet && \
+    apk add --quiet --no-cache \
+        bash \
+        coreutils \
+        curl \
+        gettext \
+        jq \
+        tini \
+        wget && \
+    rm /var/cache/apk/* && \
+    rm -rf /etc/periodic /etc/crontabs/root && \
+    mkdir -p ${HOME_DIR}/jobs
+
+COPY --from=builder /usr/bin/rq/rq /usr/local/bin
+COPY entrypoint.sh /
+
+ENTRYPOINT ["/sbin/tini", "--", "/entrypoint.sh"]
 
 HEALTHCHECK --interval=5s --timeout=3s \
     CMD ps aux | grep '[c]rond' || exit 1
 
-CMD ["crond","-f"]
+CMD ["crond", "-f", "-d", "6", "-c", "/etc/crontabs"]

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2019 will Farrell
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -1,62 +1,65 @@
-# docker-crontab
+# crontab
+
+![crontab](https://github.com/SimplicityGuy/docker-crontab/actions/workflows/build.yml/badge.svg) ![License: MIT](https://img.shields.io/github/license/SimplicityGuy/docker-crontab) [![pre-commit](https://img.shields.io/badge/pre--commit-enabled-brightgreen?logo=pre-commit)](https://github.com/pre-commit/pre-commit)
 
 A simple wrapper over `docker` to all complex cron job to be run in other containers.
 
-## Supported tags and Dockerfile links
-
--	[`latest` (*Dockerfile*)](https://github.com/willfarrell/docker-crontab/blob/master/Dockerfile)
-
-[![](https://images.microbadger.com/badges/version/willfarrell/crontab.svg)](http://microbadger.com/images/willfarrell/crontab "Get your own version badge on microbadger.com") [![](https://images.microbadger.com/badges/image/willfarrell/crontab.svg)](http://microbadger.com/images/willfarrell/crontab "Get your own image badge on microbadger.com")
-
-
 ## Why?
-Yes, I'm aware of [mcuadros/ofelia](https://github.com/mcuadros/ofelia) (280MB), it was the main inspiration for this project. 
+
+Yes, I'm aware of [mcuadros/ofelia](https://github.com/mcuadros/ofelia) (>250MB when this was created), it was the main inspiration for this project.
 A great project, don't get me wrong. It was just missing certain key enterprise features I felt were required to support where docker is heading.
 
 ## Features
+
 - Easy to read schedule syntax allowed.
 - Allows for comments, cause we all need friendly reminders of what `update_script.sh` actually does.
 - Start an image using `image`.
 - Run command in a container using `container`.
-- Run command on a instances of a scaled container using `project`.
 - Ability to trigger scripts in other containers on completion cron job using `trigger`.
+- Ability to share settings between cron jobs using `~~shared-settings` as a key.
 
-## Config.json
-- `name`: Human readable name that will be used as teh job filename. Optional.
+## Config file
+
+The config file can be specified in any of `json`, `toml`, or `yaml`, and can be defined as either an array or mapping (top-level keys will be ignored; can be useful for organizing commands)
+
+- `name`: Human readable name that will be used as the job filename. Will be converted into a slug. Optional.
 - `comment`: Comments to be included with crontab entry. Optional.
-- `schedule`: Crontab schedule syntax as described in https://godoc.org/github.com/robfig/cron. Ex `@hourly`, `@every 1h30m`, `* * * * * *`. Required.
+- `schedule`: Crontab schedule syntax as described in https://en.wikipedia.org/wiki/Cron. Examples: `@hourly`, `@every 1h30m`, `* * * * *`. Required.
 - `command`: Command to be run on in crontab container or docker container/image. Required.
 - `image`: Docker images name (ex `library/alpine:3.5`). Optional.
-- `project`: Docker Compose/Swarm project name. Optional, only applies when `contain` is included.
-- `container`: Full container name or container alias if `project` is set. Ignored if `image` is included. Optional.
+- `container`: Full container name. Ignored if `image` is included. Optional.
 - `dockerargs`: Command line docker `run`/`exec` arguments for full control. Defaults to ` `.
-- `trigger`: Array of docker-crontab subset objects. Subset includes: `image`,`project`,`container`,`command`,`dockerargs` 
-- `onstart`: Run the command on `crontab` container start, set to `true`. Optional, defaults to falsey.
+- `trigger`: Array of docker-crontab subset objects. Sub-set includes: `image`, `container`, `command`, `dockerargs`
+- `onstart`: Run the command on `crontab` container start, set to `true`. Optional, defaults to false.
 
-See [`config.sample.json`](https://github.com/willfarrell/docker-crontab/blob/master/config.sample.json) for examples.
+See [`config-samples`](config-samples) for examples.
 
 ```json
-[{
- 	"schedule":"@every 5m",
- 	"command":"/usr/sbin/logrotate /etc/logrotate.conf"
- },{
- 	"comment":"Regenerate Certificate then reload nginx",
- 	"schedule":"43 6,18 * * *",
- 	"command":"sh -c 'dehydrated --cron --out /etc/ssl --domain ${LE_DOMAIN} --challenge dns-01 --hook dehydrated-dns'",
- 	"dockerargs":"--env-file /opt/crontab/env/letsencrypt.env -v webapp_nginx_tls_cert:/etc/ssl -v webapp_nginx_acme_challenge:/var/www/.well-known/acme-challenge",
- 	"image":"willfarrell/letsencrypt",
- 	"trigger":[{
- 		"command":"sh -c '/etc/scripts/make_hpkp ${NGINX_DOMAIN} && /usr/sbin/nginx -t && /usr/sbin/nginx -s reload'",
- 		"project":"conduit",
- 		"container":"nginx"
- 	}],
- 	"onstart":true
- }]
+{
+    "logrotate": {
+        "schedule":"@every 5m",
+        "command":"/usr/sbin/logrotate /etc/logrotate.conf"
+    },
+    "cert-regen": {
+        "comment":"Regenerate Certificate then reload nginx",
+        "schedule":"43 6,18 * * *",
+        "command":"sh -c 'dehydrated --cron --out /etc/ssl --domain ${LE_DOMAIN} --challenge dns-01 --hook dehydrated-dns'",
+        "dockerargs":"--it --env-file /opt/crontab/env/letsencrypt.env",
+        "volumes":["webapp_nginx_tls_cert:/etc/ssl", "webapp_nginx_acme_challenge:/var/www/.well-known/acme-challenge"],
+        "image":"willfarrell/letsencrypt",
+        "trigger":[{
+            "command":"sh -c '/etc/scripts/make_hpkp ${NGINX_DOMAIN} && /usr/sbin/nginx -t && /usr/sbin/nginx -s reload'",
+            "container":"nginx"
+        }],
+        "onstart":true
+    }
+}
 ```
 
 ## How to use
 
 ### Command Line
+
 ```bash
 docker build -t crontab .
 docker run -d \
@@ -67,17 +70,29 @@ docker run -d \
     crontab
 ```
 
+### Use with docker-compose
+
+1. Figure out which network name used for your docker-compose containers
+   - use `docker network ls` to see existing networks
+   - if your `docker-compose.yml` is in `my_dir` directory, you probably has network `my_dir_default`
+   - otherwise [read the docker-compose docs](https://docs.docker.com/compose/networking/)
+1. Add `dockerargs` to your docker-crontab `config.json`
+   - use `--network NETWORK_NAME` to connect new container into docker-compose network
+   - use `--name NAME` to use named container
+   - e.g. `"dockerargs": "--it"`
+
 ### Dockerfile
+
 ```Dockerfile
-FROM willfarrell/crontab
+FROM registry.gitlab.com/simplicityguy/docker/crontab
 
 COPY config.json ${HOME_DIR}/
-
 ```
 
 ### Logrotate Dockerfile
+
 ```Dockerfile
-FROM willfarrell/crontab
+FROM registry.gitlab.com/simplicityguy/docker/crontab
 
 RUN apk add --no-cache logrotate
 RUN echo "*/5 *	* * *  /usr/sbin/logrotate /etc/logrotate.conf" >> /etc/crontabs/logrotate
@@ -85,17 +100,3 @@ COPY logrotate.conf /etc/logrotate.conf
 
 CMD ["crond", "-f"]
 ```
-
-### Logging - In Dev
-All `stdout` is captured, formatted, and saved to `/var/log/crontab/jobs.log`. Set `LOG_FILE` to `/dev/null` to disable logging.
-
-example: `e6ced859-1563-493b-b1b1-5a190b29e938 2017-06-18T01:27:10+0000 [info] Start Cronjob **map-a-vol** map a volume`
-
-grok: `CRONTABLOG %{DATA:request_id} %{TIMESTAMP_ISO8601:timestamp} \[%{LOGLEVEL:severity}\] %{GREEDYDATA:message}`
-
-
-## TODO
-- [ ] Have ability to auto regenerate crontab on file change (signal HUP?)
-- [ ] Run commands on host machine (w/ --privileged?)
-- [ ] Write tests
-- [ ] Setup TravisCI

config-samples/config.sample.json

@@ -0,0 +1,60 @@
+[
+  {
+    "comment": "cron with triggered commands",
+    "schedule": "* * * * *",
+    "command": "echo hello",
+    "project": "crontab",
+    "container": "myapp",
+    "trigger": [
+      {
+        "command": "echo world",
+        "container": "crontab_myapp_1"
+      }
+    ]
+  },
+  {
+    "comment": "map a volume",
+    "schedule": "* * * * *",
+    "dockerargs": "-d -v /tmp:/tmp",
+    "command": "echo new",
+    "image": "alpine:3.5"
+  },
+  {
+    "comment": "use an ENV from inside a container",
+    "schedule": "@hourly",
+    "dockerargs": "-d -e FOO=BAR",
+    "command": "sh -c 'echo hourly ${FOO}'",
+    "image": "alpine:3.5"
+  },
+  {
+    "comment": "trigger every 2 min",
+    "schedule": "@every 2m",
+    "command": "echo 2 minute",
+    "image": "alpine:3.5",
+    "trigger": [
+      {
+        "command": "echo world",
+        "container": "crontab_myapp_1"
+      }
+    ]
+  },
+  {
+    "schedule": "*/5 * * * *",
+    "command": "/usr/sbin/logrotate /etc/logrotate.conf"
+  },
+  {
+    "comment": "Regenerate Certificate then reload nginx",
+    "schedule": "43 6,18 * * *",
+    "command": "sh -c 'dehydrated --cron --out /etc/ssl --domain ${LE_DOMAIN} --challenge dns-01 --hook dehydrated-dns'",
+    "dockerargs": "--env-file /opt/crontab/env/letsencrypt.env -v webapp_nginx_tls_cert:/etc/ssl -v webapp_nginx_acme_challenge:/var/www/.well-known/acme-challenge",
+    "image": "willfarrell/letsencrypt",
+    "trigger": [
+      {
+        "command": "sh -c '/etc/scripts/make_hpkp ${NGINX_DOMAIN} && /usr/sbin/nginx -t && /usr/sbin/nginx -s reload'",
+        "project": "conduit",
+        "container": "nginx"
+      }
+    ],
+    "onstart": true
+  }
+]

config-samples/config.sample.mapping.json

@@ -0,0 +1,50 @@
+{
+  "cron with triggered commands": {
+    "comment": "cron with triggered commands",
+    "schedule": "* * * * *",
+    "command": "echo hello",
+    "project": "crontab",
+    "container": "myapp",
+    "trigger": [{ "command": "echo world", "container": "crontab_myapp_1" }]
+  },
+  "map a volume": {
+    "comment": "map a volume",
+    "schedule": "* * * * *",
+    "dockerargs": "-d -v /tmp:/tmp",
+    "command": "echo new",
+    "image": "alpine:3.5"
+  },
+  "use an ENV from inside a container": {
+    "comment": "use an ENV from inside a container",
+    "schedule": "@hourly",
+    "dockerargs": "-d -e FOO=BAR",
+    "command": "sh -c 'echo hourly ${FOO}'",
+    "image": "alpine:3.5"
+  },
+  "trigger every 2 min": {
+    "comment": "trigger every 2 min",
+    "schedule": "@every 2m",
+    "command": "echo 2 minute",
+    "image": "alpine:3.5",
+    "trigger": [{ "command": "echo world", "container": "crontab_myapp_1" }]
+  },
+  "null": {
+    "schedule": "*/5 * * * *",
+    "command": "/usr/sbin/logrotate /etc/logrotate.conf"
+  },
+  "Regenerate Certificate then reload nginx": {
+    "comment": "Regenerate Certificate then reload nginx",
+    "schedule": "43 6,18 * * *",
+    "command": "sh -c 'dehydrated --cron --out /etc/ssl --domain ${LE_DOMAIN} --challenge dns-01 --hook dehydrated-dns'",
+    "dockerargs": "--env-file /opt/crontab/env/letsencrypt.env -v webapp_nginx_tls_cert:/etc/ssl -v webapp_nginx_acme_challenge:/var/www/.well-known/acme-challenge",
+    "image": "willfarrell/letsencrypt",
+    "trigger": [
+      {
+        "command": "sh -c '/etc/scripts/make_hpkp ${NGINX_DOMAIN} && /usr/sbin/nginx -t && /usr/sbin/nginx -s reload'",
+        "project": "conduit",
+        "container": "nginx"
+      }
+    ],
+    "onstart": true
+  }
+}

config-samples/config.sample.mapping.yml

@@ -0,0 +1,46 @@
+cron with triggered commands:
+  command: echo hello
+  comment: cron with triggered commands
+  container: myapp
+  project: crontab
+  schedule: '* * * * *'
+  trigger:
+  - command: echo world
+    container: crontab_myapp_1
+map a volume:
+  command: echo new
+  comment: map a volume
+  dockerargs: -d -v /tmp:/tmp
+  image: alpine:3.5
+  schedule: '* * * * *'
+use an ENV from inside a container:
+  command: sh -c 'echo hourly ${FOO}'
+  comment: use an ENV from inside a container
+  dockerargs: -d -e FOO=BAR
+  image: alpine:3.5
+  schedule: '@hourly'
+trigger every 2 min:
+  command: echo 2 minute
+  comment: trigger every 2 min
+  image: alpine:3.5
+  schedule: '@every 2m'
+  trigger:
+  - command: echo world
+    container: crontab_myapp_1
+null:
+  command: /usr/sbin/logrotate /etc/logrotate.conf
+  schedule: '*/5 * * * *'
+Regenerate Certificate then reload nginx:
+  command: sh -c 'dehydrated --cron --out /etc/ssl --domain ${LE_DOMAIN} --challenge
+    dns-01 --hook dehydrated-dns'
+  comment: Regenerate Certificate then reload nginx
+  dockerargs: --env-file /opt/crontab/env/letsencrypt.env -v webapp_nginx_tls_cert:/etc/ssl
+    -v webapp_nginx_acme_challenge:/var/www/.well-known/acme-challenge
+  image: willfarrell/letsencrypt
+  onstart: true
+  schedule: 43 6,18 * * *
+  trigger:
+  - command: sh -c '/etc/scripts/make_hpkp ${NGINX_DOMAIN} && /usr/sbin/nginx -t &&
+      /usr/sbin/nginx -s reload'
+    container: nginx
+    project: conduit

config-samples/config.sample.toml

@@ -0,0 +1,49 @@
+# toml files can only have top-loevl mappings, so this is the only sample
+["cron with triggered commands"]
+comment = "cron with triggered commands"
+schedule = "* * * * *"
+command = "echo hello"
+project = "crontab"
+container = "myapp"
+[["cron with triggered commands".trigger]]
+command = "echo world"
+container = "crontab_myapp_1"
+
+["map a volume"]
+comment = "map a volume"
+schedule = "* * * * *"
+dockerargs = "-d -v /tmp:/tmp"
+command = "echo new"
+image = "alpine:3.5"
+
+["use an ENV from inside a container"]
+comment = "use an ENV from inside a container"
+schedule = "@hourly"
+dockerargs = "-d -e FOO=BAR"
+command = "sh -c 'echo hourly ${FOO}'"
+image = "alpine:3.5"
+
+["trigger every 2 min"]
+comment = "trigger every 2 min"
+schedule = "@every 2m"
+command = "echo 2 minute"
+image = "alpine:3.5"
+[["trigger every 2 min".trigger]]
+command = "echo world"
+container = "crontab_myapp_1"
+
+["? /usr/sbin/logrotate /etc/logrotate.conf*/5 * * * *"]
+schedule = "*/5 * * * *"
+command = "/usr/sbin/logrotate /etc/logrotate.conf"
+
+["Regenerate Certificate then reload nginx"]
+comment = "Regenerate Certificate then reload nginx"
+schedule = "43 6,18 * * *"
+command = "sh -c 'dehydrated --cron --out /etc/ssl --domain ${LE_DOMAIN} --challenge dns-01 --hook dehydrated-dns'"
+dockerargs = "--env-file /opt/crontab/env/letsencrypt.env -v ${PWD}:/etc/ssl -v webapp_nginx_acme_challenge:/var/www/.well-known/acme-challenge"
+image = "willfarrell/letsencrypt"
+onstart = true
+[["Regenerate Certificate then reload nginx".trigger]]
+command = "sh -c '/etc/scripts/make_hpkp ${NGINX_DOMAIN} && /usr/sbin/nginx -t && /usr/sbin/nginx -s reload'"
+project = "conduit"
+container = "nginx"

config-samples/config.sample.yml

@@ -0,0 +1,40 @@
+- command: echo hello
+  comment: cron with triggered commands
+  container: myapp
+  project: crontab
+  schedule: '* * * * *'
+  trigger:
+  - command: echo world
+    container: crontab_myapp_1
+- command: echo new
+  comment: map a volume
+  dockerargs: -d -v /tmp:/tmp
+  image: alpine:3.5
+  schedule: '* * * * *'
+- command: sh -c 'echo hourly ${FOO}'
+  comment: use an ENV from inside a container
+  dockerargs: -d -e FOO=BAR
+  image: alpine:3.5
+  schedule: '@hourly'
+- command: echo 2 minute
+  comment: trigger every 2 min
+  image: alpine:3.5
+  schedule: '@every 2m'
+  trigger:
+  - command: echo world
+    container: crontab_myapp_1
+- command: /usr/sbin/logrotate /etc/logrotate.conf
+  schedule: '*/5 * * * *'
+- command: sh -c 'dehydrated --cron --out /etc/ssl --domain ${LE_DOMAIN} --challenge
+    dns-01 --hook dehydrated-dns'
+  comment: Regenerate Certificate then reload nginx
+  dockerargs: --env-file /opt/crontab/env/letsencrypt.env -v webapp_nginx_tls_cert:/etc/ssl
+    -v webapp_nginx_acme_challenge:/var/www/.well-known/acme-challenge
+  image: willfarrell/letsencrypt
+  onstart: true
+  schedule: 43 6,18 * * *
+  trigger:
+  - command: sh -c '/etc/scripts/make_hpkp ${NGINX_DOMAIN} && /usr/sbin/nginx -t &&
+      /usr/sbin/nginx -s reload'
+    container: nginx
+    project: conduit

config.sample.json

@@ -1,47 +0,0 @@
-[{
-	"comment":"cron with triggered commands",
-	"schedule":"* * * * *",
-	"command":"echo hello",
-	"project":"crontab",
-	"container":"myapp",
-	"trigger":[{
-		"command":"echo world",
-		"container":"crontab_myapp_1"
-	}]
-},{
-	"comment":"map a volume",
-	"schedule":"* * * * *",
-	"dockerargs":"-d -v /tmp:/tmp",
-	"command":"echo new",
-	"image":"alpine:3.5"
-},{
-	"comment":"use an ENV from inside a container",
-	"schedule":"@hourly",
-	"dockerargs":"-d -e FOO=BAR",
-	"command":"sh -c 'echo hourly ${FOO}'",
-	"image":"alpine:3.5"
-},{
-	"comment":"trigger every 2 min",
-	"schedule":"@every 2m",
-	"command":"echo 2 minute",
-	"image":"alpine:3.5",
-	"trigger":[{
-		"command":"echo world",
-		"container":"crontab_myapp_1"
-	}]
-},{
-	"schedule":"*/5 * * * *",
-	"command":"/usr/sbin/logrotate /etc/logrotate.conf"
-},{
-	"comment":"Regenerate Certificate then reload nginx",
-	"schedule":"43 6,18 * * *",
-	"command":"sh -c 'dehydrated --cron --out /etc/ssl --domain ${LE_DOMAIN} --challenge dns-01 --hook dehydrated-dns'",
-	"dockerargs":"--env-file /opt/crontab/env/letsencrypt.env -v webapp_nginx_tls_cert:/etc/ssl -v webapp_nginx_acme_challenge:/var/www/.well-known/acme-challenge",
-	"image":"willfarrell/letsencrypt",
-	"trigger":[{
-		"command":"sh -c '/etc/scripts/make_hpkp ${NGINX_DOMAIN} && /usr/sbin/nginx -t && /usr/sbin/nginx -s reload'",
-		"project":"conduit",
-		"container":"nginx"
-	}],
-	"onstart":true
-}]

docker-compose.yml

@@ -11,5 +11,4 @@ services:
     restart: always
     volumes:
      - "/var/run/docker.sock:/var/run/docker.sock:ro"
-    # - "/usr/bin/docker:/usr/bin/docker:ro"
-     - "/Users/willfarrell/Development/docker/docker-crontab/home_dir:/opt/crontab:rw"
+     - "${PWD}/config-samples/config.sample.mapping.json:/opt/crontab/config.json:rw"

docker-entrypoint

@@ -1,216 +0,0 @@
-#!/usr/bin/env bash
-set -e
-
-if [ -z "$DOCKER_HOST" -a "$DOCKER_PORT_2375_TCP" ]; then
-	export DOCKER_HOST='tcp://docker:2375'
-fi
-
-# for local testing only
-#HOME_DIR=.
-
-if [ "${LOG_FILE}" == "" ]; then
-    LOG_DIR=/var/log/crontab
-	LOG_FILE=${LOG_DIR}/jobs.log
-	mkdir -p ${LOG_DIR}
-	touch ${LOG_FILE}
-fi
-
-CONFIG=${HOME_DIR}/config.json
-DOCKER_SOCK=/var/run/docker.sock
-CRONTAB_FILE=/etc/crontabs/docker
-
-# Ensure dir exist - in case of volume mapping
-mkdir -p ${HOME_DIR}/jobs ${HOME_DIR}/projects
-
-
-make_image_cmd() {
-    DOCKERARGS=$(echo ${1} | jq -r .dockerargs)
-    if [ "${DOCKERARGS}" == "null" ]; then DOCKERARGS=; fi
-    IMAGE=$(echo ${1} | jq -r .image)
-    TMP_COMMAND=$(echo ${1} | jq -r .command)
-    echo "docker run ${DOCKERARGS} ${IMAGE} ${TMP_COMMAND}"
-}
-
-make_container_cmd() {
-    DOCKERARGS=$(echo ${1} | jq -r .dockerargs)
-    if [ "${DOCKERARGS}" == "null" ]; then DOCKERARGS=; fi
-    SCRIPT_NAME=$(echo ${1} | jq -r .name)
-    PROJECT=$(echo ${1} | jq -r .project)
-    CONTAINER=$(echo ${1} | jq -r .container)
-    TMP_COMMAND=$(echo ${1} | jq -r .command)
-
-    if [ "${PROJECT}" != "null" ]; then
-
-        # create bash script to detect all running containers
-        if [ "${SCRIPT_NAME}" == "null" ]; then
-            SCRIPT_NAME=$(cat /proc/sys/kernel/random/uuid)
-        fi
-cat << EOF > ${HOME_DIR}/projects/${SCRIPT_NAME}.sh
-#!/usr/bin/env bash
-set -e
-
-CONTAINERS=\$(docker ps --format '{{.Names}}' | grep -E "^${PROJECT}_${CONTAINER}.[0-9]+")
-for CONTAINER_NAME in \$CONTAINERS; do
-    docker exec ${DOCKERARGS} \${CONTAINER_NAME} ${TMP_COMMAND}
-done
-EOF
-        echo "/bin/bash ${HOME_DIR}/projects/${SCRIPT_NAME}.sh"
-    else
-        echo "docker exec ${DOCKERARGS} ${CONTAINER} ${TMP_COMMAND}"
-    fi
-}
-
-#make_host_cmd() {
-#   HOST_BINARY=$(echo ${1} | jq -r .host)
-#   TMP_COMMAND=$(echo ${1} | jq -r .command)
-#   echo "${HOST_BINARY} ${TMP_COMMAND}"
-#}
-
-make_cmd() {
-    if [ "$(echo ${1} | jq -r .image)" != "null" ]; then
-        make_image_cmd "$1"
-    elif [ "$(echo ${1} | jq -r .container)" != "null" ]; then
-        make_container_cmd "$1"
-    #elif [ "$(echo ${1} | jq -r .host)" != "null" ]; then
-    #   make_host_cmd "$1"
-    else
-        echo ${1} | jq -r .command
-    fi
-}
-
-parse_schedule() {
-	case $1 in
-        "@yearly")
-            echo "0 0 0 1 1 *"
-            ;;
-        "@annually")
-            echo "0 0 0 1 1 *"
-            ;;
-        "@monthly")
-            echo "0 0 0 1 * *"
-            ;;
-        "@weekly")
-            echo "0 0 0 * * 0"
-            ;;
-        "@daily")
-            echo "0 0 0 * * *"
-            ;;
-        "@midnight")
-            echo "0 0 0 * * *"
-            ;;
-        "@hourly")
-            echo "0 0 * * * *"
-            ;;
-        "@every")
-            TIME=$2
-            TOTAL=0
-
-            M=$(echo $TIME | grep -o '[0-9]\+m')
-            H=$(echo $TIME | grep -o '[0-9]\+h')
-            D=$(echo $TIME | grep -o '[0-9]\+d')
-
-            if [ -n "${M}" ]; then
-                TOTAL=$(($TOTAL + ${M::-1}))
-            fi
-            if [ -n "${H}" ]; then
-                TOTAL=$(($TOTAL + ${H::-1} * 60))
-            fi
-            if [ -n "${D}" ]; then
-                TOTAL=$(($TOTAL + ${D::-1} * 60 * 24))
-            fi
-
-            echo "*/${TOTAL} * * * * *"
-            ;;
-        *)
-            echo "${@}"
-            ;;
-    esac
-}
-
-function build_crontab() {
-    rm -rf ${CRONTAB_FILE}
-
-    ONSTART=()
-    while read i ; do
-
-        SCHEDULE=$(jq -r .[$i].schedule ${CONFIG} | sed 's/\*/\\*/g')
-        if [ "${SCHEDULE}" == "null" ]; then
-            echo "Schedule Missing: $(jq -r .[$i].schedule ${CONFIG})"
-            continue
-        fi
-        SCHEDULE=$(parse_schedule ${SCHEDULE} | sed 's/\\//g')
-
-        if [ "$(jq -r .[$i].command ${CONFIG})" == "null" ]; then
-            echo "Command Missing: $(jq -r .[$i].command ${CONFIG})"
-            continue
-        fi
-
-        COMMENT=$(jq -r .[$i].comment ${CONFIG})
-        if [ "${COMMENT}" != "null" ]; then
-            echo "# ${COMMENT}" >> ${CRONTAB_FILE}
-        fi
-
-        SCRIPT_NAME=$(jq -r .[$i].name ${CONFIG})
-        if [ "${SCRIPT_NAME}" == "null" ]; then
-            SCRIPT_NAME=$(cat /proc/sys/kernel/random/uuid)
-        fi
-
-        COMMAND="/bin/bash ${HOME_DIR}/jobs/${SCRIPT_NAME}.sh"
-cat << EOF > ${HOME_DIR}/jobs/${SCRIPT_NAME}.sh
-#!/usr/bin/env bash
-set -e
-
-# TODO find workaround
-# [error] write /dev/stdout: broken pipe <- when using docker commands
-#UUID=\$(cat /proc/sys/kernel/random/uuid)
-#exec > >(read message; echo "\${UUID} \$(date -Iseconds) [info] \$message" | tee -a ${LOG_FILE} )
-#exec 2> >(read message; echo "\${UUID} \$(date -Iseconds) [error] \$message" | tee -a ${LOG_FILE} >&2)
-
-echo "Start Cronjob **${SCRIPT_NAME}** ${COMMENT}"
-
-$(make_cmd "$(jq -c .[$i] ${CONFIG})")
-EOF
-
-
-
-        if [ "$(jq -r .[$i].trigger ${CONFIG})" != "null" ]; then
-            while read j ; do
-                if [ "$(jq .[$i].trigger[$j].command ${CONFIG})" == "null" ]; then
-                    echo "Command Missing: $(jq -r .[$i].trigger[$j].command ${CONFIG})"
-                    continue
-                fi
-                #TRIGGER_COMMAND=$(make_cmd "$(jq -c .[$i].trigger[$j] ${CONFIG})")
-                echo "$(make_cmd "$(jq -c .[$i].trigger[$j] ${CONFIG})")" >> ${HOME_DIR}/jobs/${SCRIPT_NAME}.sh
-                #COMMAND="${COMMAND} && ${TRIGGER_COMMAND}"
-            done < <(jq -r '.['$i'].trigger|keys[]' ${CONFIG})
-        fi
-
-        echo "echo \"End Cronjob **${SCRIPT_NAME}** ${COMMENT}\"" >> ${HOME_DIR}/jobs/${SCRIPT_NAME}.sh
-
-        echo "${SCHEDULE} ${COMMAND}" >> ${CRONTAB_FILE}
-
-        if [ "$(jq -r .[$i].onstart ${CONFIG})" == "true" ]; then
-            ONSTART+=("${COMMAND}")
-        fi
-    done < <(jq -r '.|keys[]' ${CONFIG})
-
-    echo "##### crontab generation complete #####"
-    cat ${CRONTAB_FILE}
-
-    echo "##### run commands with onstart #####"
-    for COMMAND in "${ONSTART[@]}"; do
-        echo "${COMMAND}"
-        ${COMMAND} &
-    done
-}
-
-if [ "$1" = "crond" ]; then
-    if [ -f ${CONFIG} ]; then
-        build_crontab
-    else
-        echo "Unable to find ${HOME_DIR}/config.json"
-    fi
-fi
-
-echo "$@"
-exec "$@"

entrypoint.sh

@@ -0,0 +1,263 @@
+#!/bin/bash
+
+set -e
+
+DOCKER_SOCK=/var/run/docker.sock
+CRONTAB_FILE=/etc/crontabs/docker
+
+if [ -z "${HOME_DIR}" ] && [ -n "${TEST_MODE}" ]; then
+    HOME_DIR=/tmp/crontab-docker-testing
+    CRONTAB_FILE=${HOME_DIR}/test
+elif [ -z "${HOME_DIR}" ]; then
+    echo "HOME_DIR not set."
+    exit 1
+fi
+
+# Ensure dir exist - in case of volume mapping.
+mkdir -p "${HOME_DIR}"/jobs
+
+if [ -z "${DOCKER_HOST}" ] && [ -a "${DOCKER_PORT_2375_TCP}" ]; then
+    export DOCKER_HOST="tcp://docker:2375"
+fi
+
+normalize_config() {
+    JSON_CONFIG={}
+    if [ -f "${HOME_DIR}/config.json" ]; then
+        JSON_CONFIG="$(cat "${HOME_DIR}"/config.json)"
+    elif [ -f "${HOME_DIR}/config.toml" ]; then
+        JSON_CONFIG="$(rq -t <<< "$(cat "${HOME_DIR}"/config.toml)")"
+    elif [ -f "${HOME_DIR}/config.yml" ]; then
+        JSON_CONFIG="$(rq -y <<< "$(cat "${HOME_DIR}"/config.yml)")"
+    elif [ -f "${HOME_DIR}/config.yaml" ]; then
+        JSON_CONFIG="$(rq -y <<< "$(cat "${HOME_DIR}"/config.yaml)")"
+    fi
+
+    jq -S -r '."~~shared-settings" as $shared | del(."~~shared-settings") | to_entries | map_values(.value + { name: .key } + $shared)' <<< "${JSON_CONFIG}" > "${HOME_DIR}"/config.working.json
+}
+
+ensure_docker_socket_accessible() {
+    if ! grep -q "^docker:" /etc/group; then
+        # Ensure 'docker' user has permissions for docker socket (without changing permissions).
+        DOCKER_GID=$(stat -c '%g' ${DOCKER_SOCK})
+        if [ "${DOCKER_GID}" != "0" ]; then
+            if ! grep -qE "^[^:]+:[^:]+:${DOCKER_GID}:" /etc/group; then
+                # No group with such gid exists - create group 'docker'.
+                addgroup -g "${DOCKER_GID}" docker
+                adduser docker docker
+            else
+                # Group with such gid exists - add user 'docker' to this group.
+                DOCKER_GROUP_NAME=$(getent group "${DOCKER_GID}" | awk -F':' '{{ print $1 }}')
+                adduser docker "${DOCKER_GROUP_NAME}"
+            fi
+        else
+            # Docker socket belongs to 'root' group - add user 'docker' to this group.
+            adduser docker root
+        fi
+    fi
+}
+
+slugify() {
+    echo "${@}" | iconv -t ascii | sed -r s/[~^]+//g | sed -r s/[^a-zA-Z0-9]+/-/g | sed -r s/^-+\|-+$//g | tr '[:upper:]' '[:lower:]'
+}
+
+make_image_cmd() {
+    DOCKERARGS=$(echo "${1}" | jq -r .dockerargs)
+    ENVIRONMENT=$(echo "${1}" | jq -r 'select(.environment != null) | .environment | map("--env " + .) | join(" ")')
+    EXPOSE=$(echo "${1}" | jq -r 'select(.expose != null) | .expose | map("--expose " + .) | join(" ")' )
+    NAME=$(echo "${1}" | jq -r 'select(.name != null) | .name')
+    NETWORKS=$(echo "${1}" | jq -r 'select(.networks != null) | .networks | map("--network " + .) | join(" ")')
+    PORTS=$(echo "${1}" | jq -r 'select(.ports != null) | .ports | map("--publish " + .) | join(" ")')
+    VOLUMES=$(echo "${1}" | jq -r 'select(.volumes != null) | .volumes | map("--volume " + .) | join(" ")')
+
+    if [ "${DOCKERARGS}" == "null" ]; then DOCKERARGS=; fi
+    DOCKERARGS+=" "
+    if [ -n "${ENVIRONMENT}" ]; then DOCKERARGS+="${ENVIRONMENT} "; fi
+    if [ -n "${EXPOSE}" ]; then DOCKERARGS+="${EXPOSE} "; fi
+    if [ -n "${NAME}" ]; then DOCKERARGS+="--name ${NAME} "; fi
+    if [ -n "${NETWORKS}" ]; then DOCKERARGS+="${NETWORKS} "; fi
+    if [ -n "${PORTS}" ]; then DOCKERARGS+="${PORTS} "; fi
+    if [ -n "${VOLUMES}" ]; then DOCKERARGS+="${VOLUMES} "; fi
+
+    IMAGE=$(echo "${1}" | jq -r .image | envsubst)
+    if [ "${IMAGE}" == "null" ]; then return; fi
+
+    COMMAND=$(echo "${1}" | jq -r .command)
+
+    echo "docker run ${DOCKERARGS} ${IMAGE} ${COMMAND}"
+}
+
+make_container_cmd() {
+    DOCKERARGS=$(echo "${1}" | jq -r .dockerargs)
+    if [ "${DOCKERARGS}" == "null" ]; then DOCKERARGS=; fi
+
+    CONTAINER=$(echo "${1}" | jq -r .container | envsubst)
+    if [ "${CONTAINER}" == "null" ]; then return; fi
+
+    COMMAND=$(echo "${1}" | jq -r .command )
+    if [ "${COMMAND}" == "null" ]; then return; fi
+
+    echo "docker exec ${DOCKERARGS} ${CONTAINER} ${COMMAND}"
+}
+
+make_cmd() {
+    if [ "$(echo "${1}" | jq -r .image)" != "null" ]; then
+        make_image_cmd "${1}"
+    elif [ "$(echo "${1}" | jq -r .container)" != "null" ]; then
+        make_container_cmd "${1}"
+    else
+        echo "${1}" | jq -r .command
+    fi
+}
+
+parse_schedule() {
+    IFS=" "
+    read -a params <<< "$@"
+
+    case ${params[0]} in
+        "@yearly" | "@annually")
+            echo "0 0 1 1 *"
+            ;;
+        "@monthly")
+            echo "0 0 1 * *"
+            ;;
+        "@weekly")
+            echo "0 0 * * 0"
+            ;;
+        "@daily")
+            echo "0 0 * * *"
+            ;;
+        "@midnight")
+            echo "0 0 * * *"
+            ;;
+        "@hourly")
+            echo "0 * * * *"
+            ;;
+        "@random")
+            M="*"
+            H="*"
+            D="*"
+
+            for when in "${params[@]:1}"
+            do
+                case $when in
+                    "@m")
+                        M=$(shuf -i 0-59 -n 1)
+                        ;;
+                    "@h")
+                        H=$(shuf -i 0-23 -n 1)
+                        ;;
+                    "@d")
+                        D=$(shuf -i 0-6 -n 1)
+                        ;;
+                esac
+            done
+
+            echo "${M} ${H} * * ${D}"
+            ;;
+        *)
+            echo "${params[@]}"
+            ;;
+    esac
+}
+
+function build_crontab() {
+    rm -rf "${CRONTAB_FILE}"
+
+    ONSTART=()
+    while read -r i ; do
+        KEY=$(jq -r .["$i"] "${CONFIG}")
+
+        SCHEDULE=$(echo "${KEY}" | jq -r '.schedule' | sed 's/\*/\\*/g')
+        if [ "${SCHEDULE}" == "null" ]; then
+            echo "'schedule' missing: '${KEY}"
+            continue
+        fi
+        SCHEDULE=$(parse_schedule "${SCHEDULE}" | sed 's/\\//g')
+
+        COMMAND=$(echo "${KEY}" | jq -r '.command')
+        if [ "${COMMAND}" == "null" ]; then
+            echo "'command' missing: '${KEY}'"
+            continue
+        fi
+
+        COMMENT=$(echo "${KEY}" | jq -r '.comment')
+
+        SCRIPT_NAME=$(echo "${KEY}" | jq -r '.name')
+        SCRIPT_NAME=$(slugify "${SCRIPT_NAME}")
+        if [ "${SCRIPT_NAME}" == "null" ]; then
+            SCRIPT_NAME=$(cat /proc/sys/kernel/random/uuid)
+        fi
+
+        CRON_COMMAND=$(make_cmd "${KEY}")
+
+        SCRIPT_PATH="${HOME_DIR}/jobs/${SCRIPT_NAME}.sh"
+
+        touch "${SCRIPT_PATH}"
+        chmod +x "${SCRIPT_PATH}"
+
+        {
+            echo "#\!/usr/bin/env bash"
+            echo "set -e"
+            echo ""
+            echo "echo \"start cron job __${SCRIPT_NAME}__\""
+            echo "${CRON_COMMAND}"
+        }  > "${SCRIPT_PATH}"
+
+        TRIGGER=$(echo "${KEY}" | jq -r '.trigger')
+        if [ "${TRIGGER}" != "null" ]; then
+            while read -r j ; do
+                TRIGGER_KEY=$(echo "${KEY}" | jq -r .trigger["$j"])
+
+                TRIGGER_COMMAND=$(echo "${TRIGGER_KEY}" | jq -r '.command')
+                if [ "${TRIGGER_COMMAND}" == "null" ]; then
+                    continue
+                fi
+
+                make_cmd "${TRIGGER_KEY}" >> "${SCRIPT_PATH}"
+            done < <(echo "${KEY}" | jq -r '.trigger | keys[]')
+        fi
+
+        echo "echo \"end cron job __${SCRIPT_NAME}__\"" >> "${SCRIPT_PATH}"
+
+        if [ "${COMMENT}" != "null" ]; then
+            echo "# ${COMMENT}" >> "${CRONTAB_FILE}"
+        fi
+        echo "${SCHEDULE} ${SCRIPT_PATH}" >> "${CRONTAB_FILE}"
+
+        ONSTART_COMMAND=$(echo "${KEY}" | jq -r '.onstart')
+        if [ "${ONSTART_COMMAND}" == "true" ]; then
+            ONSTART+=("${SCRIPT_PATH}")
+        fi
+    done < <(jq -r '. | keys[]' "${CONFIG}")
+
+    printf "##### crontab generated #####\n"
+    cat "${CRONTAB_FILE}"
+
+    printf "##### run commands with onstart #####\n"
+    for ONSTART_COMMAND in "${ONSTART[@]}"; do
+        printf "%s\n" "${ONSTART_COMMAND}"
+        ${ONSTART_COMMAND} &
+    done
+
+    printf "##### cron running #####\n"
+}
+
+start_app() {
+    normalize_config
+    export CONFIG=${HOME_DIR}/config.working.json
+    if [ ! -f "${CONFIG}" ]; then
+        printf "missing generated %s. exiting.\n" "${CONFIG}"
+        exit 1
+    fi
+    if [ "${1}" == "crond" ]; then
+        build_crontab
+    fi
+    printf "%s\n" "${@}"
+    exec "${@}"
+}
+
+if [ -z "${TEST_MODE}" ]; then
+    ensure_docker_socket_accessible
+fi
+printf "✨ starting crontab container ✨\n"
+start_app "${@}"

test

@@ -1,18 +0,0 @@
-#!/usr/bin/env bash
-set -e
-
-LOG_FILE=./jobs.log
-touch ${LOG_FILE}
-UUID="xxxxxxxxxxxxxxxxx"
-
-exec > >(read message; echo "${UUID} $(date) [info] $message" | tee -a ${LOG_FILE} )
-exec 2> >(read message; echo "${UUID} $(date) [error] $message" | tee -a ${LOG_FILE} >&2)
-
-echo "Start"
-
-docker run alpine sh -c 'while :; do echo "ping"; sleep 1; done'
-# [error] write /dev/stdout: broken pipe
-# --log-driver syslog <- errors
-# --log-driver none <- errors
-
-echo "End"