command=$1
config=$2
-config_file="$config".yml
+config_file=containers/"$config".yml
cidfile=cids/"$config".cid
cidbootstrap=cids/"$config"_boostrap.cid
-image=samsaffron/discourse
+local_discourse=local_discourse
+image=samsaffron/discourse:0.1.2
docker_path=`which docker`
+docker_ip=`/sbin/ifconfig | \
+ grep -B1 "inet addr" | \
+ awk '{ if ( $1 == "inet" ) { print $2 } else if ( $2 == "Link" ) { printf "%s:" ,$1 } }' | \
+ grep docker0 | \
+ awk -F: '{ print $3 }';`
+
+
usage () {
echo "Usage: launcher COMMAND CONFIG"
echo "Commands:"
echo " destroy: Stop and remove a container"
echo " ssh: Start a bash shell in a running container"
echo " logs: Docker logs for container"
- echo " bootstrap: Bootstrap a container for the config base on an image"
+ echo " bootstrap: Bootstrap a container for the config based on a template"
exit 1
}
+prereqs() {
+
+ # 1. running aufs
+ test=`docker info 2> /dev/null | grep 'Driver: aufs'`
+ if [[ "$test" =~ "aufs" ]] ; then : ; else
+ echo "Your Docker installation is not using aufs"
+ echo "Device mapper and other experimental drivers are unstable"
+ echo
+ echo "Please ensure your kernel is running linux extras and aufs"
+ echo "Please follow the installation guide for Docker here: http://docs.docker.io/en/latest/installation/ubuntulinux/"
+ exit 1
+ fi
+
+ # 2. running docker 0.9+
+ test=`docker --version | grep 0.9`
+
+ if [[ "$test" =~ "0.9" ]] ; then : ; else
+ echo "Your Docker installation is old, please upgrade to 0.9.0 or up"
+ exit 1
+ fi
+
+ # 3. able to attach stderr / out / tty
+ test=`docker run -i --rm -a stdin -a stdout -a stderr $image echo working`
+ if [[ "$test" =~ "working" ]] ; then : ; else
+ echo "Your Docker installation is not working correctly"
+ echo
+ echo "See: https://meta.discourse.org/t/docker-error-on-bootstrap/13657/18?u=sam"
+ exit 1
+ fi
+}
+
+prereqs
+
+get_ssh_pub_key() {
+ if tty -s ; then
+ if [[ ! -e ~/.ssh/id_rsa.pub && ! -e ~/.ssh/id_dsa.pub ]] ; then
+ echo You have no SSH key associated to this profile
+ echo "(This will allow you ssh access into your container)"
+ read -p "Generate SSH key at ~/.ssh/id_rsa.pub? (y/N) " -n 1 -r
+ if [[ $REPLY =~ ^[Yy]$ ]] ; then
+ echo
+ echo Generating SSH key
+ mkdir -p ~/.ssh && ssh-keygen -f ~/.ssh/id_rsa -t rsa -N ''
+ else
+ echo
+ echo WARNING: You may not be able to log in to your container.
+ echo
+ fi
+ fi
+ fi
+
+ ssh_pub_key="$(cat ~/.ssh/id_rsa.pub 2>/dev/null || cat ~/.ssh/id_dsa.pub)"
+}
+
+
install_docker() {
echo "Docker is not installed, make sure you are running on the 3.8 kernel"
}
set_volumes() {
- volumes=`cat $config_file | docker run -rm -i -a stdout -a stdin $image ruby -e \
+ volumes=`cat $config_file | docker run --rm -i -a stdout -a stdin $image ruby -e \
"require 'yaml'; puts YAML.load(STDIN.readlines.join)['volumes'].map{|v| '-v ' << v['volume']['host'] << ':' << v['volume']['guest'] << ' '}.join"`
}
+set_template_info() {
+
+ templates=`cat $config_file | docker run --rm -i -a stdin -a stdout $image ruby -e \
+ "require 'yaml'; puts YAML.load(STDIN.readlines.join)['templates']"`
+
+
+ arrTemplates=(${templates// / })
+ config_data=$(cat $config_file)
+
+ input="hack: true"
+
+
+ for template in "${arrTemplates[@]}"
+ do
+ [ ! -z $template ] && {
+ input="$input _FILE_SEPERATOR_ $(cat $template)"
+ }
+ done
+
+ # we always want our config file last so it takes priority
+ input="$input _FILE_SEPERATOR_ $config_data"
+
+ read -r -d '' env_ruby << 'RUBY'
+ require 'yaml'
+
+ input=STDIN.readlines.join
+ env = {}
+ input.split('_FILE_SEPERATOR_').each do |yml|
+ yml.strip!
+ begin
+ env.merge!(YAML.load(yml)['env'] || {})
+ rescue => e
+ puts yml
+ p e
+ end
+ end
+ puts env.map{|k,v| "-e\n#{k}=#{v}" }.join("\n")
+RUBY
+
+ raw=`exec echo "$input" | docker run --rm -i -a stdin -a stdout $image ruby -e "$env_ruby"`
+
+ env=()
+ while read i; do
+ env[${#env[@]}]=$i
+ done <<< "$raw"
+
+ echo "Calculated ENV: ${env[@]}"
+}
+
[ -z $docker_path ] && {
install_docker
}
exit 1
fi
+
+run_stop(){
+ if [ ! -e $cidfile ]
+ then
+ echo "No cid found"
+ exit 1
+ else
+ docker stop -t 10 `cat $cidfile`
+ fi
+}
+
+run_start(){
+
+ if [ ! -e $cidfile ]
+ then
+ echo "No cid found, creating a new container"
+ ports=`cat $config_file | docker run --rm -i -a stdout -a stdin $image ruby -e \
+ "require 'yaml'; puts YAML.load(STDIN.readlines.join)['expose'].map{|p| '-p ' << p.to_s << ' '}.join"`
+
+ set_template_info
+ set_volumes
+
+ existing=`docker ps -a | awk '{ print $1, $(NF) }' | grep "$config$" | awk '{ print $1 }'`
+ if [ ! -z $existing ]
+ then
+ echo "Found an existing container by its name, recovering cidfile, please rerun"
+ echo $existing > $cidfile
+ exit 1
+ fi
+
+ docker run "${env[@]}" -h "`hostname`-$config" -e DOCKER_HOST_IP=$docker_ip --name $config -t --cidfile $cidfile $ports \
+ -d $volumes $local_discourse/$config /usr/bin/runsvdir -P /etc/service
+
+ exit 0
+ else
+ cid=`cat $cidfile`
+
+ if [ -z $cid ]
+ then
+ echo "Detected empty cid file, deleting, please re-run"
+ rm $cidfile
+ exit 1
+ fi
+
+ found=`docker ps -q -a --no-trunc | grep $cid`
+ if [ -z $found ]
+ then
+ echo "Invalid cid file, deleting, please re-run"
+ rm $cidfile
+ exit 1
+ fi
+
+ echo "cid found, ensuring container is started"
+ docker start `cat $cidfile`
+ exit 0
+ fi
+
+}
+
case "$command" in
bootstrap)
- template=`cat $config_file | docker run -rm -i -a stdin -a stdout $image ruby -e \
- "require 'yaml'; puts YAML.load(STDIN.readlines.join)['template']"`
+ get_ssh_pub_key
- input=$(cat $config_file)
- [ ! -z $template ] && {
- input="$input _FILE_SEPERATOR_ $(cat $template)"
- }
+ # Is the image available?
+ # If not, pull it here so the user is aware what's happening.
+ docker history $image >/dev/null 2>&1 || docker pull $image
+
+ set_template_info
+
+ base_image=`cat $config_file | docker run --rm -i -a stdin -a stdout $image ruby -e \
+ "require 'yaml'; puts YAML.load(STDIN.readlines.join)['base_image']"`
+
+ update_pups=`cat $config_file | docker run --rm -i -a stdin -a stdout $image ruby -e \
+ "require 'yaml'; puts YAML.load(STDIN.readlines.join)['update_pups']"`
+
+ if [[ ! X"" = X"$base_image" ]]; then
+ image=$base_image
+ fi
set_volumes
- exec echo "$input" | docker run -cidfile $cidbootstrap -i -a stdin -a stdout -a stderr $volumes $image /pups/bin/pups --stdin
+ rm -f $cidbootstrap
+
+ run_command="cd /pups &&"
+ if [[ ! "false" = $update_pups ]]; then
+ run_command="$run_command git pull &&"
+ fi
+ run_command="$run_command /pups/bin/pups --stdin"
+
+ echo $run_command
+
+ env=("${env[@]}" "-e" "SSH_PUB_KEY=\"$ssh_pub_key\"")
+
+ (exec echo "$input" | docker run "${env[@]}" -e DOCKER_HOST_IP=$docker_ip --cidfile $cidbootstrap -i -a stdin -a stdout -a stderr $volumes $image \
+ /bin/bash -c "$run_command") \
+ || (docker rm `cat $cidbootstrap` && rm $cidbootstrap)
+
+ [ ! -e $cidbootstrap ] && echo "FAILED TO BOOTSTRAP" && exit 1
+
sleep 5
- docker commit `cat $cidbootstrap` $image $config
+
+ docker commit `cat $cidbootstrap` $local_discourse/$config || echo 'FAILED TO COMMIT'
docker rm `cat $cidbootstrap` && rm $cidbootstrap
+
+ echo "Successfully bootstrapped, to startup use ./launcher start $config"
exit 0
;;
cid="`cat $cidfile`"
address="`docker port $cid 22`"
split=(${address//:/ })
- exec ssh root@${split[0]} -p ${split[1]}
+ exec ssh -o StrictHostKeyChecking=no root@${split[0]} -p ${split[1]}
fi
;;
stop)
- if [ ! -e $cidfile ]
- then
- echo "No cid found"
- exit 1
- else
- docker stop -t 10 `cat $cidfile`
- exit 0
- fi
+ run_stop
+ exit 0
;;
logs)
fi
;;
- start)
-
- if [ ! -e $cidfile ]
- then
- echo "No cid found, creating a new container"
- ports=`cat $config_file | docker run -rm -i -a stdout -a stdin $image ruby -e \
- "require 'yaml'; puts YAML.load(STDIN.readlines.join)['expose'].map{|p| '-p ' << p.to_s << ' '}.join"`
-
- set_volumes
+ restart)
+ run_stop
+ run_start
+ exit 0
+ ;;
- docker run -name $config -cidfile $cidfile $ports -d $volumes $image:$config /usr/bin/runsvdir -P /etc/service
- exit 0
- else
- echo "cid found, ensuring container is started"
- docker start `cat $cidfile`
- exit 0
- fi
+ start)
+ run_start
+ exit 0
;;
projects / discourse_docker.git / blobdiff