Using RQ to change toml and yaml to JSON, removing all python stuff

Author: Omar Ahmad

Dockerfile

@@ -1,7 +1,19 @@
+FROM alpine:3.12 as rq-build
+
+ENV RQ_VERSION=1.0.2
+WORKDIR /root/
+
+RUN apk --update add upx \
+    && wget https://github.com/dflemstr/rq/releases/download/v${RQ_VERSION}/rq-v${RQ_VERSION}-x86_64-unknown-linux-musl.tar.gz \
+    && tar -xvf rq-v1.0.2-x86_64-unknown-linux-musl.tar.gz \
+    && upx --brute rq
+
 FROM library/docker:stable
 
+COPY --from=rq-build /root/rq /usr/local/bin
+
 ENV HOME_DIR=/opt/crontab
-RUN apk add --no-cache --virtual .run-deps gettext bash py3-toml py3-yaml python3 jq tini \
+RUN apk add --no-cache --virtual .run-deps gettext jq bash tini \
     && mkdir -p ${HOME_DIR}/jobs ${HOME_DIR}/projects \
     && adduser -S docker -D
 

config.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

docker-compose.yml

@@ -12,4 +12,4 @@ services:
     volumes:
      - "/var/run/docker.sock:/var/run/docker.sock:ro"
     # - "/usr/bin/docker:/usr/bin/docker:ro"
-     - "/Users/willfarrell/Development/docker/docker-crontab/config.json:/opt/crontab/config.json:rw"
+     - "${PWD}/config.json:/opt/crontab/config.json:rw"

docker-entrypoint

@@ -17,11 +17,11 @@ fi
 
 get_config() {
     if [ -f "${HOME_DIR}/config.toml" ]; then
-        python3 -c "with open('${HOME_DIR}/config.toml') as ct, open('${HOME_DIR}/config.json', 'w') as cj: import toml; import json; json.dump(list(toml.load(ct).values()), cj)"
+        rq -t <<< $(cat ${HOME_DIR}/config.toml) | jq 'map(.)' > ${HOME_DIR}/config.json
     elif [ -f "${HOME_DIR}/config.yml" ]; then
-        python3 -c "with open('${HOME_DIR}/config.yml') as cy, open('${HOME_DIR}/config.json', 'w') as cj: import yaml; import json; json.dump(list(yaml.safe_load(cy).values()), cj)"
+        rq -y <<< $(cat ${HOME_DIR}/config.yml) | jq 'map(.)' > ${HOME_DIR}/config.json
     elif [ -f "${HOME_DIR}/config.yaml" ]; then
-        python3 -c "with open('${HOME_DIR}/config.yaml') as cy, open('${HOME_DIR}/config.json', 'w') as cj: import yaml; import json; json.dump(list(yaml.safe_load(cy).values()), cj)"
+        rq -y <<< $(cat ${HOME_DIR}/config.yaml) | jq 'map(.)' > ${HOME_DIR}/config.json
     fi
 }