docker bits

Dockerfile

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+FROM docker-registry1.in.thelinuxpro.net:5000/tlp/tlp_jekyll:0.0.1
+
+LABEL version="0.0.1"
+LABEL image.author.name="Kameron Kenny"
+LABEL image.author.email="kameron@localhost"
+LABEL description="A Jekyll site for photos.kameronkenny.com."
+
+ARG LOCATION_JEKYLL="/usr/local/jekyll"
+
+ENV GEM_HOME="/usr/local/gems"
+ENV PATH="/usr/local/gems/bin:$PATH"
+ENV SITE="photos.kameronkenny.com"
+ENV NGINX_CONF_D="$LOCATION_JEKYLL/nginx"
+
+ENV DEBIAN_FRONTEND=noninteractive
+
+RUN apt update && apt -y upgrade
+RUN apt install -y libmagick++-dev
+
+### Shouldn't need this, it's in the Gemfile, but hold just in case.
+#RUN gem install rmagick exifr
+
+RUN mkdir -p $LOCATION_JEKYLL/sites/$SITE
+
+WORKDIR /usr/local/sbin
+COPY ./entrypoint.sh .
+
+WORKDIR $NGINX_CONF_D
+COPY ./app/conf/nginx/nginx.conf .
+
+WORKDIR $LOCATION_JEKYLL/sites/$SITE
+COPY . .
+
+RUN bundle install
+RUN JEKYLL_ENV=production bundle exec jekyll build
+
+ENTRYPOINT /usr/local/sbin/entrypoint.sh

Jenkinsfile

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+pipeline {
+  agent {
+    node {
+      label 'pi501.in.thelinuxpro.net'
+    }
+  }
+
+  stages {
+    stage("verify tooling") {
+	steps {
+	  sh '''
+	  docker version
+	  docker info
+	  docker compose version
+	  '''
+	}
+    }
+
+    stage('Build container') {
+	steps {
+	  script {
+	    def dockerfile = 'Dockerfile'
+	    def containerImage = docker.build("tlp/photos_kameronkenny_com_web:${env.BUILD_ID}", "-f ${dockerfile} .")
+
+	    docker.withRegistry('http://docker-registry1.in.thelinuxpro.net:5000') {
+	      containerImage.push()
+	      containerImage.push('latest')
+	    }
+	  }
+	}
+    }
+
+    stage('Create contexts') {
+        steps {
+	  sh 'docker context ls | grep pi502 || docker context create pi502 --docker "host=ssh://pi502.in.thelinuxpro.net"'
+        }
+    }
+
+    stage('Start container') {
+	steps {
+	  script {
+	    //#def status_s = sh(returnStatus: true, script: 'grep $(docker --context pi502 compose ps | tail -n1 | awk \'{ print $2 }\') docker-compose.yml')
+	    sh 'docker --context pi502 compose pull photos_kameronkenny_com_web'
+
+	    //if (status_s != 0) {
+	    //  sh 'docker --context pi502 compose up -d'
+	    //  sh 'docker --context pi502 compose ps'
+	    //} else {
+	      sh 'docker --context pi502 compose down || echo "Container already down or does not exist yet."'
+	      sh 'docker --context pi502 compose up -d'
+	      sh 'docker --context pi502 compose ps'
+	    //}
+	  }
+      }
+
+    }
+  }
+}

app/conf/nginx/nginx.conf

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+user www-data;
+worker_processes auto;
+pid /run/nginx.pid;
+error_log /var/log/nginx/error.log;
+include /etc/nginx/modules-enabled/*.conf;
+
+events {
+        worker_connections 768;
+        # multi_accept on;
+}
+
+http {
+
+	##
+        # Basic Settings
+        ##
+
+        sendfile on;
+        tcp_nopush on;
+        types_hash_max_size 2048;
+        # server_tokens off;
+
+        # server_names_hash_bucket_size 64;
+        # server_name_in_redirect off;
+
+        include /etc/nginx/mime.types;
+        default_type application/octet-stream;
+        access_log /var/log/nginx/access.log;
+        gzip off;
+
+	server {
+        	listen 4002 default_server;
+		#        listen [::]:80 default_server;
+
+        	root /usr/local/jekyll/sites/kameronkenny.com/_site;
+
+        	index index.html index.htm;
+
+        	server_name _;
+
+        	location / {
+        		# First attempt to serve request as file, then
+	        	# as directory, then fall back to displaying a 404.
+                	try_files $uri $uri/ =404;
+        	}
+	}
+
+}

docker-compose.yml

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+---
+
+services:
+  photos_kameronkenny_com_web:
+    container_name: photos.kameronkenny.com_web
+    image: docker-registry1.in.thelinuxpro.net:5000/sites/kameronkenny.com:latest
+    ports:
+      - '4002:4002'
+    restart: always
+    user: root
+    deploy:
+      placement:
+        constraints: [node.role == manager]

entrypoint.sh

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+#!/usr/bin/env bash
+
+function start_nginx() {
+	/usr/sbin/nginx -p /usr/local/jekyll/nginx -c nginx.conf 
+}
+
+function watchtower() {
+	while true; do
+		ps -elf | grep nginx | grep -v grep | grep nginx >/dev/null 2>&1
+		RC=$?
+
+		if [[ $RC != 0 ]]; then
+			start_nginx
+		fi
+
+		sleep 10
+	done
+}
+
+watchtower