Merge pull request '1.0.0' (#4) from develop into master

Reviewed-on: #4

.drone.yml

@@ -1,21 +1,38 @@
 kind: pipeline
 type: docker
-name: build-multiarch-images
+name: build-release-images
+trigger:
+  event:
+    exclude:
+    - pull_request
+  ref:
+    - refs/tags/**
 
 platform:
   os: linux
   arch: amd64
 
 steps:
+
+- name: get-tags
+  image: docker:git
+  commands:
+    - git fetch --tags
+  depends_on:
+    - clone
+
 - name: make-tags
   image: node
   commands:
-    - echo -n "${DRONE_COMMIT_SHA:0:10}, latest" > .tags
+    - echo -n "${DRONE_TAG}, latest" > .tags
+  depends_on:
+    - get-tags
 
-- name: build  
+- name: build-gitea
   image: thegeeklab/drone-docker-buildx
   privileged: true
   settings:
+    provenance: false
     registry: git.mrmeeb.stream
     username: 
       from_secret: docker_username
@@ -25,16 +42,135 @@ steps:
     platforms:
       - linux/arm64
       - linux/amd64
+  depends_on:
+    - make-tags
+
+- name: release-gitea
+  image: goreleaser/goreleaser
+  environment:
+    GITEA_TOKEN:
+      from_secret: gitea_token
+  commands:
+    - goreleaser release -f .goreleaser-gitea.yaml
+  depends_on:
+    - build-gitea
 
 - name: notify
   image: plugins/slack
+  when:
+    status:
+    - success
+    - failure
   settings:
     webhook: 
       from_secret: slack_webhook
+  depends_on:
+    - release-gitea
 
+---
+kind: pipeline
+type: docker
+name: build-main-images
 trigger:
-  branch:
-    - master
   event:
     exclude:
     - pull_request
+  ref:
+    - refs/heads/master
+
+platform:
+  os: linux
+  arch: amd64
+
+steps:
+
+- name: make-tags
+  image: node
+  commands:
+    - echo -n "${DRONE_COMMIT_SHA:0:8}, latest" > .tags
+  when:
+    ref:
+      - refs/heads/master
+  depends_on:
+    - clone
+
+- name: build-gitea
+  image: thegeeklab/drone-docker-buildx
+  privileged: true
+  settings:
+    provenance: false
+    registry: git.mrmeeb.stream
+    username: 
+      from_secret: docker_username
+    password: 
+      from_secret: docker_password
+    repo: git.mrmeeb.stream/mrmeeb/certbot-cron
+    platforms:
+      - linux/arm64
+      - linux/amd64
+  depends_on:
+    - make-tags
+
+- name: notify
+  image: plugins/slack
+  when:
+    status:
+    - success
+    - failure
+  settings:
+    webhook: 
+      from_secret: slack_webhook
+  depends_on:
+    - build-gitea
+
+---
+kind: pipeline
+type: docker
+name: build-develop-images
+trigger:
+  event:
+    exclude:
+    - pull_request
+  branch:
+    - develop
+
+platform:
+  os: linux
+  arch: amd64
+
+steps:
+  # Set tags for develop branch - git commit SHA and 'develop'
+- name: make-tags
+  image: node
+  commands:
+    - echo -n "develop-${DRONE_COMMIT_SHA:0:8}, develop" > .tags
+   
+  # Build containers from develop branch
+- name: build-gitea
+  image: thegeeklab/drone-docker-buildx
+  privileged: true
+  settings:
+    provenance: false
+    registry: git.mrmeeb.stream
+    username: 
+      from_secret: docker_username
+    password: 
+      from_secret: docker_password
+    repo: git.mrmeeb.stream/mrmeeb/certbot-cron
+    platforms:
+      - linux/arm64
+      - linux/amd64
+  depends_on:
+    - make-tags
+
+- name: notify
+  image: plugins/slack
+  when:
+    status:
+    - success
+    - failure
+  settings:
+    webhook: 
+      from_secret: slack_webhook
+  depends_on:
+    - build-gitea

.gitignore

@@ -0,0 +1,2 @@
+dist-gitea/
+.tags

.goreleaser-gitea.yaml

@@ -0,0 +1,28 @@
+
+dist: dist-gitea
+
+build:
+  skip: true
+
+archives:
+- format: binary
+
+release:
+  draft: true
+  gitea:
+    owner: MrMeeb
+    name: certbot-cron-docker
+
+changelog:
+  sort: asc
+  filters:
+    exclude:
+      - '^docs:'
+      - '^test:'
+
+# .goreleaser.yaml
+gitea_urls:
+  api: https://git.mrmeeb.stream/api/v1
+  download: https://git.mrmeeb.stream
+  # set to true if you use a self-signed certificate
+  skip_tls_verify: false

Dockerfile

@@ -1,17 +1,15 @@
-FROM debian:bullseye-slim
+FROM alpine:latest as base
+ARG TARGETARCH
 
-RUN apt update && apt install -y bash cron python3 python3-venv procps tini
+FROM base AS base-amd64
+ENV S6_OVERLAY_ARCH=x86_64
 
-RUN python3 -m venv /opt/certbot/ && /opt/certbot/bin/pip install --upgrade pip
+FROM base AS base-arm64
+ENV S6_OVERLAY_ARCH=aarch64
 
-RUN /opt/certbot/bin/pip install certbot certbot-dns-cloudflare && \
+FROM base-${TARGETARCH}${TARGETVARIANT}
-    ln -s /opt/certbot/bin/certbot /usr/bin/certbot
 
-RUN mkdir -p /config
+ARG S6_OVERLAY_VERSION=3.1.5.0
-
-COPY run.sh / renew.sh /
-
-RUN chmod +x /run.sh /renew.sh
 
 ENV DOMAINS=
 ENV EMAIL=
@@ -19,6 +17,42 @@ ENV INTERVAL="0 */6 * * *"
 ENV STAGING=false
 ENV PROPOGATION_TIME=10
 ENV GENERATE_DHPARAM=true
+ENV TZ=UTC
+ENV PUID=1000
+ENV PGID=1000
+ENV CLOUDFLARE_TOKEN=
 
-ENTRYPOINT ["/usr/bin/tini", "-s", "/run.sh"]
+#Get required packages
+RUN apk update && apk add curl bash python3 py3-virtualenv procps tzdata nano shadow xz busybox-suid openssl
+
+#Make folders
+RUN mkdir /config && \
+    mkdir /app && \
+#Create default user
+    useradd -u 1000 -U -d /config -s /bin/false mrmeeb && \
+    usermod -G users mrmeeb
+
+#Install s6-overlay
+RUN curl -fsSL "https://github.com/just-containers/s6-overlay/releases/download/v${S6_OVERLAY_VERSION}/s6-overlay-noarch.tar.xz" | tar Jpxf - -C / && \
+    curl -fsSL "https://github.com/just-containers/s6-overlay/releases/download/v${S6_OVERLAY_VERSION}/s6-overlay-${S6_OVERLAY_ARCH}.tar.xz" | tar Jpxf - -C / && \
+    curl -fsSL "https://github.com/just-containers/s6-overlay/releases/download/v${S6_OVERLAY_VERSION}/s6-overlay-symlinks-noarch.tar.xz" | tar Jpxf - -C / && \
+    curl -fsSL "https://github.com/just-containers/s6-overlay/releases/download/v${S6_OVERLAY_VERSION}/s6-overlay-symlinks-arch.tar.xz" | tar Jpxf - -C /
+ENV S6_BEHAVIOUR_IF_STAGE2_FAILS=2 S6_CMD_WAIT_FOR_SERVICES_MAXTIME=0 S6_VERBOSITY=1
+
+RUN python3 -m venv /app/certbot/ && /app/certbot/bin/pip install --upgrade pip
+
+#Get required packages for building, build, then cleanup
+RUN apk add --no-cache --virtual .deps gcc python3-dev libc-dev libffi-dev && \
+    /app/certbot/bin/pip install certbot certbot-dns-cloudflare && \
+    ln -s /app/certbot/bin/certbot /usr/bin/certbot &&\
+    apk del .deps
+
+COPY root /
+
+RUN chmod +x /container-init.sh && \
+    chmod +x /certbot-prepare.sh && \
+    chmod +x /certbot-renew.sh && \
+    chown -R ${PUID}:${PGID} /app /config
+
+ENTRYPOINT [ "/init" ]
 

README.md

@@ -1,8 +1,15 @@
 # Certbot Cron Docker
 
-[![Build Status](https://drone.mrmeeb.stream/api/badges/MrMeeb/certbot-cron-docker/status.svg)](https://drone.mrmeeb.stream/MrMeeb/certbot-cron-docker)
+![Drone (self-hosted) with branch](https://img.shields.io/drone/build/MrMeeb/certbot-cron-docker/master?label=latest&server=https%3A%2F%2Fdrone.mrmeeb.stream&style=for-the-badge) ![Drone (self-hosted) with branch](https://img.shields.io/drone/build/MrMeeb/certbot-cron-docker/develop?label=develop&server=https%3A%2F%2Fdrone.mrmeeb.stream&style=for-the-badge)
 
-Dockerised Certbot that utilises cron to schedule creating and renewing SSL certificates. Uses Cloudflare for DNS-01 verification. Automatic renewal attempt happens every 6 hours.
+Dockerised Certbot that utilises cron to schedule creating and renewing SSL certificates. Uses Cloudflare for DNS-01 verification. Automatic renewal attempt happens every 6 hours by default.
+
+## Tags
+
+|Tag    |Description|
+|-------|-----------|
+|latest |Latest image built from the main branch. Usually coincides with a tagged release.|
+|develop|Latest image built from the develop branch. Commits are made to the develop branch before being merged to main. Old versions of `develop` are removed after 14 days.|
 
 ## Running
 
@@ -11,6 +18,7 @@ Dockerised Certbot that utilises cron to schedule creating and renewing SSL cert
 docker run -d --name certbot \
     -e EMAIL=admin@domain.com \
     -e DOMAINS=domain.com \
+    -e CLOUDFLARE_TOKEN=123abc
     -v /docker/certbot-cron:/config \
     git.mrmeeb.stream/mrmeeb/certbot-cron:latest
 ```
@@ -28,19 +36,23 @@ services:
     environment:
       - EMAIL=admin@domain.com
       - DOMAINS=domain.com,*.domain.com
+      - CLOUDFLARE_TOKEN=123abc
 ```
 
 ## Environment Variables:
 
 | Variable | Default Value | Description |
 | --- | --- | --- |
+|PUID    |int    |1000   |Sets the UID of the user certbot runs under |
+|PGID    |int    |1000   |Sets the GID of the user certbot runs under |
+|TZ      |[List of valid TZs](https://en.wikipedia.org/wiki/List_of_tz_database_time_zones#List)    |UTC    |Sets the timezone of the container |
 | EMAIL | None | Email address for renewal information & other communications |
 | DOMAINS | None | Domains to be included in the certificate. Comma separated list, no spaces. Wildcards supported |
 | INTERVAL | 0 */6 * * * | How often certbot attempts to renew the certificate. Cron syntax |
 | STAGING | false (case-sensitive) | Uses the LetsEncrypt staging endpoint for testing - avoids the aggressive rate-limiting of the production endpoint |
 | PROPOGATION_TIME | 10 | The amount of time (seconds) that certbot waits for the TXT records to propogate to Cloudflare before verifying - the more domains in the certificate, the longer you might need |
 | GENERATE_DHPARAM | true (case-sensitive) | Generate Diffie-Hellman keys in /config/letsencrypt/keys |
-
+| CLOUDFLARE_TOKEN | N/A | Cloudflare token for verification |
 
 ## Volumes
 
@@ -48,22 +60,6 @@ services:
 | --- | --- |
 | /config | Stores configs and LetsEncrypt output for mounting in other containers
 
-## Building
-
-```
-git clone https://git.mrmeeb.stream/certbot-cron-docker
-
-cd certbot-cron-docker
-
-docker build -t certbot-cron .
-
-docker run -d --name certbot-cron \
-    -e EMAIL=admin@domain.com \
-    -e DOMAINS=domain.com \
-    -v /docker/certbot-cron:/config \
-    certbot-cron
-```
-
 ## Other
 
 Thanks to [this guy](https://stackoverflow.com/questions/63447441/docker-stop-for-crond-times-out) for explaining how to make cron actually shutdown when stopping the container.

renew.sh

@@ -1,18 +0,0 @@
-#!/bin/bash
-
-echo "Attempting to renew certificates"
-if [[ $STAGING = true ]] 
-then
-    echo "Using staging endpoint - THIS SHOULD BE USED FOR TESTING ONLY"
-    certbot certonly --staging --non-interactive --agree-tos --dns-cloudflare --dns-cloudflare-propagation-seconds $PROPOGATION_TIME --dns-cloudflare-credentials /config/.secrets/cloudflare.ini --email $EMAIL -d $DOMAINS
-    echo "Renewal attempt complete"
-elif [[ $STAGING = false ]] 
-then
-    echo "Using production endpoint"
-    certbot certonly --non-interactive --agree-tos --dns-cloudflare --dns-cloudflare-propagation-seconds $PROPOGATION_TIME --dns-cloudflare-credentials /config/.secrets/cloudflare.ini --email $EMAIL -d $DOMAINS
-    echo "Renewal attempt complete"
-else
-    echo "Unrecognised option for STAGING variable - check your configuration"
-
-    exit 8
-fi

root/certbot-prepare.sh

@@ -0,0 +1,85 @@
+#!/command/with-contenv bash
+# shellcheck shell=bash
+
+#Creating needed folders and files if they don't already exist
+if [ ! -d /config/.secrets ]
+then
+    mkdir /config/.secrets
+fi
+
+if [ ! -d /config/letsencrypt ]
+then
+    mkdir /config/letsencrypt
+fi
+
+if [ ! -d /config/letsencrypt/keys ]
+then
+    mkdir /config/letsencrypt/keys
+fi
+
+if [ ! -d /config/logs ]
+then
+    mkdir /config/logs
+fi
+
+if [ ! -f /config/logs/renew.log ]
+then
+    touch /config/logs/renew.log
+fi
+
+if [ ! -f /config/.crontab.txt ]
+then
+    touch /config/.crontab.txt
+fi
+
+if [ ! -f /config/.secrets/cloudflare.ini ]
+then
+    touch /config/.secrets/cloudflare.ini
+fi
+
+if [ -n "$CLOUDFLARE_TOKEN" ]
+then
+    echo "Cloudflare token is present"
+
+    echo "dns_cloudflare_api_token = $CLOUDFLARE_TOKEN" > /config/.secrets/cloudflare.ini
+
+fi
+
+if [ ! -s /config/.secrets/cloudflare.ini ]
+then
+    echo "cloudflare.ini is empty - please add your Cloudflare credentials or API key before continuing. This can be done as an ENV var, or by editing the file directly"
+
+    exit 22
+fi
+
+#Securing cloudflare.ini to supress warnings
+chmod 600 /config/.secrets/cloudflare.ini
+
+echo "Creating certificates, or attempting to renew if they already exist"
+
+if [[ $STAGING = true ]] 
+then
+    echo "Using staging endpoint - THIS SHOULD BE USED FOR TESTING ONLY"
+    certbot certonly --staging --non-interactive --config-dir /config/letsencrypt --work-dir /config/.tmp --logs-dir /config/logs --key-path /config/letsencrypt/keys --expand --agree-tos --dns-cloudflare --dns-cloudflare-propagation-seconds $PROPOGATION_TIME --dns-cloudflare-credentials /config/.secrets/cloudflare.ini --email $EMAIL -d $DOMAINS
+    echo "Creation/renewal attempt complete"
+elif [[ $STAGING = false ]] 
+then
+    echo "Using production endpoint"
+    certbot certonly --non-interactive --config-dir /config/letsencrypt --work-dir /config/.tmp --logs-dir /config/logs --key-path /config/letsencrypt/keys --expand --agree-tos --dns-cloudflare --dns-cloudflare-propagation-seconds $PROPOGATION_TIME --dns-cloudflare-credentials /config/.secrets/cloudflare.ini --email $EMAIL -d $DOMAINS
+    echo "Creation/renewal attempt complete"
+else
+    echo "Unrecognised option for STAGING variable - check your configuration"
+
+    exit 22
+fi
+
+if [[ $GENERATE_DHPARAM = true ]] && [[ ! -s /config/letsencrypt/keys/ssl-dhparams.pem ]]
+then
+    echo "Generating Diffie-Hellman keys, saved to /config/letsencrypt/keys"
+    openssl dhparam -out /config/letsencrypt/keys/ssl-dhparams.pem 4096
+fi
+
+echo "$INTERVAL /certbot-renew.sh >> /config/logs/renew.log" > /config/.crontab.txt
+
+echo "Starting automatic renewal job. Schedule is $INTERVAL"
+crontab /config/.crontab.txt

root/certbot-renew.sh

@@ -0,0 +1,20 @@
+#!/command/with-contenv bash
+# shellcheck shell=bash
+echo ''
+date
+echo "Attempting to renew certificates"
+if [[ $STAGING = true ]] 
+then
+    echo "Using staging endpoint - THIS SHOULD BE USED FOR TESTING ONLY"
+    certbot certonly --staging --non-interactive --config-dir /config/letsencrypt --work-dir /config/.tmp --logs-dir /config/logs --key-path /config/letsencrypt/keys --expand --agree-tos --dns-cloudflare --dns-cloudflare-propagation-seconds $PROPOGATION_TIME --dns-cloudflare-credentials /config/.secrets/cloudflare.ini --email $EMAIL -d $DOMAINS
+    echo "Renewal attempt complete"
+elif [[ $STAGING = false ]] 
+then
+    echo "Using production endpoint"
+    certbot certonly --non-interactive --config-dir /config/letsencrypt --work-dir /config/.tmp --logs-dir /config/logs --key-path /config/letsencrypt/keys --expand --agree-tos --dns-cloudflare --dns-cloudflare-propagation-seconds $PROPOGATION_TIME --dns-cloudflare-credentials /config/.secrets/cloudflare.ini --email $EMAIL -d $DOMAINS
+    echo "Renewal attempt complete"
+else
+    echo "Unrecognised option for STAGING variable - check your configuration"
+
+    exit 8
+fi

root/container-init.sh

@@ -0,0 +1,59 @@
+#!/command/with-contenv bash
+# shellcheck shell=bash
+
+echo ""
+echo ""
+echo "================================================"
+echo "|      __  _______  __  ___________________    |" 
+echo "|     /  |/  / __ \/  |/  / ____/ ____/ __ )   |"
+echo "|    / /|_/ / /_/ / /|_/ / __/ / __/ / __  |   |"
+echo "|   / /  / / _, _/ /  / / /___/ /___/ /_/ /    |"
+echo "|  /_/  /_/_/ |_/_/  /_/_____/_____/_____/     |"
+echo "|                                              |"
+echo "================================================"
+echo ""
+echo "Initialising container"
+echo "
+----------------------------------------------------------------------
+ENVIRONMENT
+----------------------------------------------------------------------
+PUID=${PUID}
+PGID=${PGID}
+TZ=${TZ}
+DOMAINS=${DOMAINS}
+EMAIL=${EMAIL}
+INTERVAL=${INTERVAL}
+STAGING=${STAGING}
+PROPOGATION_TIME=${PROPOGATION_TIME}
+GENERATE_DHPARAM=${GENERATE_DHPARAM}
+CLOUDFLARE_TOKEN=${CLOUDFLARE_TOKEN}
+----------------------------------------------------------------------
+"
+
+#Setting UID and GID as configured
+if [[ ! "${PUID}" -eq 0 ]] && [[ ! "${PGID}" -eq 0 ]]; then
+    echo "Executing usermod..."
+    mkdir "/tmp/temphome"
+    usermod -d "/tmp/temphome" mrmeeb
+    usermod -o -u "${PUID}" mrmeeb
+    usermod -d /config mrmeeb
+    rm -rf "/tmp/temphome"
+    groupmod -o -g "${PGID}" mrmeeb
+else
+    echo "Running as root is not supported, please fix your PUID and PGID!"
+    exit 1
+fi
+
+echo "Checking permissions in /config and /app."
+
+if [ ! "$(stat -c %u /app)" -eq "${PUID}" ] || [ ! "$(stat -c %g /app)" -eq "${PGID}" ]
+then
+    echo "Fixing permissions for /app (this can take some time)."
+    chown -R mrmeeb:mrmeeb /app
+fi
+
+if [ ! "$(stat -c %u /config)" -eq "${PUID}" ] || [ ! "$(stat -c %g /config)" -eq "${PGID}" ]
+then
+    echo "Fixing permissions for /config (this can take some time)."
+    chown -R mrmeeb:mrmeeb /config
+fi

root/etc/s6-overlay/s6-rc.d/certbot-prepare/type

@@ -0,0 +1 @@
+oneshot

root/etc/s6-overlay/s6-rc.d/certbot-prepare/up

@@ -0,0 +1 @@
+exec s6-setuidgid mrmeeb /certbot-prepare.sh

root/etc/s6-overlay/s6-rc.d/container-init/type

@@ -0,0 +1 @@
+oneshot

root/etc/s6-overlay/s6-rc.d/container-init/up

@@ -0,0 +1 @@
+/container-init.sh

root/etc/s6-overlay/s6-rc.d/cron/finish

@@ -0,0 +1 @@
+echo "$e" > /run/s6-linux-init-container-results/exitcode

root/etc/s6-overlay/s6-rc.d/cron/run

@@ -0,0 +1,3 @@
+#!/command/with-contenv bash
+# shellcheck shell=bash
+exec crond -f

root/etc/s6-overlay/s6-rc.d/cron/type

@@ -0,0 +1 @@
+longrun

root/etc/s6-overlay/s6-rc.d/logs/finish

@@ -0,0 +1 @@
+echo "$e" > /run/s6-linux-init-container-results/exitcode

root/etc/s6-overlay/s6-rc.d/logs/run

@@ -0,0 +1,3 @@
+#!/command/with-contenv bash
+# shellcheck shell=bash
+tail -fn 0 /config/logs/renew.log

root/etc/s6-overlay/s6-rc.d/logs/type

@@ -0,0 +1 @@
+longrun

run.sh

@@ -1,85 +0,0 @@
-#!/bin/bash
-echo ""
-echo ""
-echo "================================================"
-echo "|      __  _______  __  ___________________    |" 
-echo "|     /  |/  / __ \/  |/  / ____/ ____/ __ )   |"
-echo "|    / /|_/ / /_/ / /|_/ / __/ / __/ / __  |   |"
-echo "|   / /  / / _, _/ /  / / /___/ /___/ /_/ /    |"
-echo "|  /_/  /_/_/ |_/_/  /_/_____/_____/_____/     |"
-echo "|                                              |"
-echo "================================================"
-echo ""
-echo ""
-                                         
-
-#Creating needed folders and files if they don't already exist
-if [ ! -d /config/.secrets ]
-then
-    mkdir /config/.secrets
-fi
-
-if [ ! -d /config/letsencrypt ]
-then
-    mkdir /config/letsencrypt
-fi
-
-if [ ! -f /config/.secrets/cloudflare.ini ]
-then
-    touch /config/.secrets/cloudflare.ini
-fi
-
-if [ ! -f /crontab.txt ]
-then
-    touch /crontab.txt
-fi
-
-if [ ! -s /config/.secrets/cloudflare.ini ]
-then
-    echo "cloudflare.ini is empty - please add your Cloudflare credentials or API key before continuing"
-
-    exit 8
-fi
-
-#Securing cloudflare.ini to supress warnings
-chmod 600 /config/.secrets/cloudflare.ini
-
-#Outputting Environment Variables to /etc/environment for use by cron-based scripts
-env >> /etc/environment
-
-ln -s /config/letsencrypt /etc/letsencrypt
-
-echo "Domains being added to the certificate are "$DOMAINS
-
-echo "Propogation time is $PROPOGATION_TIME seconds"
-
-echo "Creating certificates, or attempting to renew if they already exist"
-
-if [[ $STAGING = true ]] 
-then
-    echo "Using staging endpoint - THIS SHOULD BE USED FOR TESTING ONLY"
-    certbot certonly --staging --non-interactive --agree-tos --dns-cloudflare --dns-cloudflare-propagation-seconds $PROPOGATION_TIME --dns-cloudflare-credentials /config/.secrets/cloudflare.ini --email $EMAIL -d $DOMAINS
-    echo "Creation/renewal attempt complete"
-elif [[ $STAGING = false ]] 
-then
-    echo "Using production endpoint"
-    certbot certonly --non-interactive --agree-tos --dns-cloudflare --dns-cloudflare-propagation-seconds $PROPOGATION_TIME --dns-cloudflare-credentials /config/.secrets/cloudflare.ini --email $EMAIL -d $DOMAINS
-    echo "Creation/renewal attempt complete"
-else
-    echo "Unrecognised option for STAGING variable - check your configuration"
-
-    exit 8
-fi
-
-if [[ $GENERATE_DHPARAM = true ]] && [[ ! -s /config/letsencrypt/keys/ssl-dhparams.pem ]]
-then
-    echo "Generating Diffie-Hellman keys, saved to /config/letsencrypt/keys"
-    openssl dhparam -out /config/letsencrypt/keys/ssl-dhparams.pem 4096
-fi
-
-echo "$INTERVAL /renew.sh > /proc/1/fd/1 2>/proc/1/fd/2" > /crontab.txt
-
-echo "Starting automatic renewal job. Schedule is $INTERVAL"
-crontab /crontab.txt
-
-exec cron -f