-#!/bin/bash
+#!/usr/bin/env bash
usage () {
echo "Usage: launcher COMMAND CONFIG [--skip-prereqs] [--docker-args STRING]"
echo "Commands:"
- echo " start: Start/initialize a container"
- echo " stop: Stop a running container"
- echo " restart: Restart a container"
- echo " destroy: Stop and remove a container"
- echo " enter: Open a shell to run commands inside the container"
- echo " logs: View the Docker logs for a container"
- echo " bootstrap: Bootstrap a container for the config based on a template"
- echo " rebuild: Rebuild a container (destroy old, bootstrap, start new)"
- echo " cleanup: Remove all containers that have stopped for > 24 hours"
+ echo " start: Start/initialize a container"
+ echo " stop: Stop a running container"
+ echo " restart: Restart a container"
+ echo " destroy: Stop and remove a container"
+ echo " enter: Open a shell to run commands inside the container"
+ echo " logs: View the Docker logs for a container"
+ echo " bootstrap: Bootstrap a container for the config based on a template"
+ echo " run: Run the given command with the config in the context of the last bootstrapped image"
+ echo " rebuild: Rebuild a container (destroy old, bootstrap, start new)"
+ echo " cleanup: Remove all containers that have stopped for > 24 hours"
+ echo " start-cmd: Generate docker command used to start container"
echo
echo "Options:"
echo " --skip-prereqs Don't check launcher prerequisites"
echo " --docker-args Extra arguments to pass when running docker"
echo " --skip-mac-address Don't assign a mac address"
+ echo " --run-image Override the image used for running the container"
exit 1
}
+# for potential re-exec later
+SAVED_ARGV=("$@")
+
command=$1
config=$2
+
+# user_args_argv is assigned once when the argument vector is parsed.
+user_args_argv=""
+# user_args is mutable: its value may change when templates are parsed.
+# Superset of user_args_argv.
user_args=""
+user_run_image=""
+
+if [[ $command == "run" ]]; then
+ run_command=$3
+fi
+
while [ ${#} -gt 0 ]; do
case "${1}" in
--debug)
SKIP_MAC_ADDRESS="1"
;;
--docker-args)
- user_args="$2"
+ user_args_argv="$2"
+ user_args="$user_args_argv"
+ shift
+ ;;
+ --run-image)
+ user_run_image="$2"
shift
;;
esac
shift 1
done
+if [ -z "$command" -o -z "$config" -a "$command" != "cleanup" ]; then
+ usage
+fi
+
# Docker doesn't like uppercase characters, spaces or special characters, catch it now before we build everything out and then find out
re='[[:upper:]/ !@#$%^&*()+~`=]'
if [[ $config =~ $re ]];
config_file=containers/"$config".yml
cidbootstrap=cids/"$config"_bootstrap.cid
local_discourse=local_discourse
-image=discourse/base:2.0.20180717
-docker_path=`which docker.io || which docker`
+image="discourse/base:2.0.20201221-2020"
+docker_path=`which docker.io 2> /dev/null || which docker`
git_path=`which git`
if [ "${SUPERVISED}" = "true" ]; then
exit 1
}
+pull_image() {
+ # Add a single retry to work around dockerhub TLS errors
+ $docker_path pull $image || $docker_path pull $image
+}
+
check_prereqs() {
if [ -z $docker_path ]; then
fi
# 2. running an approved storage driver?
- if ! $docker_path info 2> /dev/null | egrep -q '^Storage Driver: (aufs|btrfs|zfs|overlay|overlay2)$'; then
+ if ! $docker_path info 2> /dev/null | egrep -q 'Storage Driver: (aufs|zfs|overlay2)$'; then
echo "Your Docker installation is not using a supported storage driver. If we were to proceed you may have a broken install."
- echo "aufs is the recommended storage driver, although zfs/btrfs/overlay and overlay2 may work as well."
+ echo "overlay2 is the recommended storage driver, although zfs and aufs may work as well."
echo "Other storage drivers are known to be problematic."
echo "You can tell what filesystem you are using by running \"docker info\" and looking at the 'Storage Driver' line."
echo
echo
echo "Please be patient"
echo
+
+ pull_image
fi
# 5. running recommended git version
echo "You have less than 5GB of free space on the disk where $safe_folder is located. You will need more space to continue"
df -h $safe_folder
echo
- read -p "Would you like to attempt to recover space by cleaning docker images and containers in the system?(y/N)" -n 1 -r
- echo
- if [[ $REPLY =~ ^[Yy]$ ]]
- then
- docker system prune
- echo "If the cleanup was successful, you may try again now"
+ if tty >/dev/null; then
+ read -p "Would you like to attempt to recover space by cleaning docker images and containers in the system? (y/N)" -n 1 -r
+ echo
+ if [[ $REPLY =~ ^[Yy]$ ]]
+ then
+ $docker_path container prune --force --filter until=1h >/dev/null
+ $docker_path image prune --all --force --filter until=1h >/dev/null
+ echo "If the cleanup was successful, you may try again now"
+ fi
fi
exit 1
fi
check_prereqs
fi
-host_run() {
- read -r -d '' env_ruby << 'RUBY'
- require 'yaml'
-
- input = STDIN.readlines.join
- yaml = YAML.load(input)
-
- if host_run = yaml['host_run']
- params = yaml['params'] || {}
- host_run.each do |run|
- params.each do |k,v|
- run = run.gsub("$#{k}", v)
- end
- STDOUT.write "#{run}--SEP--"
- end
- end
-RUBY
-
- host_run=`cat $config_file | $docker_path run $user_args --rm -i -a stdout -a stdin $image ruby -e "$env_ruby"`
-
- while [ "$host_run" ] ; do
- iter=${host_run%%--SEP--*}
- echo
- echo "Host run: $iter"
- $iter || exit 1
- echo
- host_run="${host_run#*--SEP--}"
- done
-}
-
-
set_volumes() {
volumes=`cat $config_file | $docker_path run $user_args --rm -i -a stdout -a stdin $image ruby -e \
"require 'yaml'; puts YAML.load(STDIN.readlines.join)['volumes'].map{|v| '-v ' << v['volume']['host'] << ':' << v['volume']['guest'] << ' '}.join"`
p e
end
end
+ env.each{|k,v| puts "*ERROR." if v.is_a?(Hash)}
puts env.map{|k,v| "-e\n#{k}=#{v}" }.join("\n")
RUBY
- raw=`exec echo "$input" | $docker_path run $user_args --rm -i -a stdin -a stdout $image ruby -e "$env_ruby"`
+ tmp_input_file=$(mktemp)
+
+ echo "$input" > "$tmp_input_file"
+ raw=`exec cat "$tmp_input_file" | $docker_path run $user_args --rm -i -a stdin -a stdout $image ruby -e "$env_ruby"`
+
+ rm -f "$tmp_input_file"
env=()
ok=1
if [ "$i" == "*ERROR." ]; then
ok=0
elif [ -n "$i" ]; then
- env[${#env[@]}]=$i
+ env[${#env[@]}]="${i//\{\{config\}\}/${config}}"
fi
done <<< "$raw"
exit 1
fi
+ # labels
read -r -d '' labels_ruby << 'RUBY'
require 'yaml'
input=STDIN.readlines.join
- # default to UTF-8 for the dbs sake
labels = {}
input.split('_FILE_SEPERATOR_').each do |yml|
yml.strip!
puts labels.map{|k,v| "-l\n#{k}=#{v}" }.join("\n")
RUBY
- raw=`exec echo "$input" | $docker_path run $user_args --rm -i -a stdin -a stdout $image ruby -e "$labels_ruby"`
+ tmp_input_file=$(mktemp)
+
+ echo "$input" > "$tmp_input_file"
+ raw=`exec cat "$tmp_input_file" | $docker_path run $user_args --rm -i -a stdin -a stdout $image ruby -e "$labels_ruby"`
+
+ rm -f "$tmp_input_file"
labels=()
ok=1
echo "YAML syntax error. Please check your containers/*.yml config files."
exit 1
fi
-}
-if [ -z $docker_path ]; then
- install_docker
-fi
+ # expose
+ read -r -d '' ports_ruby << 'RUBY'
+ require 'yaml'
-[ "$command" == "cleanup" ] && {
- echo
- echo "The following command will"
- echo "- Delete all docker images for old containers"
- echo "- Delete all stopped and orphan containers"
- echo
- read -p "Are you sure (Y/n): " -n 1 -r && echo
- if [[ $REPLY =~ ^[Yy]$ || ! $REPLY ]]
- then
- space=$(df /var/lib/docker | awk '{ print $4 }' | grep -v Available)
- echo "Starting Cleanup (bytes free $space)"
+ input=STDIN.readlines.join
+ ports = []
+ input.split('_FILE_SEPERATOR_').each do |yml|
+ yml.strip!
+ begin
+ ports += (YAML.load(yml)['expose'] || [])
+ rescue Psych::SyntaxError => e
+ puts e
+ puts "*ERROR."
+ rescue => e
+ puts yml
+ p e
+ end
+ end
+ puts ports.map { |p| p.to_s.include?(':') ? "-p\n#{p}" : "--expose\n#{p}" }.join("\n")
+RUBY
- STATE_DIR=./.gc-state scripts/docker-gc
+ tmp_input_file=$(mktemp)
- rm -f shared/standalone/log/var-log/*.txt
+ echo "$input" > "$tmp_input_file"
+ raw=`exec cat "$tmp_input_file" | $docker_path run $user_args --rm -i -a stdin -a stdout $image ruby -e "$ports_ruby"`
- space=$(df /var/lib/docker | awk '{ print $4 }' | grep -v Available)
- echo "Finished Cleanup (bytes free $space)"
+ rm -f "$tmp_input_file"
- else
+ ports=()
+ ok=1
+ while read i; do
+ if [ "$i" == "*ERROR." ]; then
+ ok=0
+ elif [ -n "$i" ]; then
+ ports[${#ports[@]}]=$i
+ fi
+ done <<< "$raw"
+
+ if [ "$ok" -ne 1 ]; then
+ echo "${ports[@]}"
+ echo "YAML syntax error. Please check your containers/*.yml config files."
exit 1
- fi
+ fi
+
+ merge_user_args
+}
+
+if [ -z $docker_path ]; then
+ install_docker
+fi
+
+[ "$command" == "cleanup" ] && {
+ $docker_path container prune --filter until=1h
+ $docker_path image prune --all --filter until=1h
if [ -d /var/discourse/shared/standalone/postgres_data_old ]; then
echo
echo "Old PostgreSQL backup data cluster detected taking up $(du -hs /var/discourse/shared/standalone/postgres_data_old | awk '{print $1}') detected"
- read -p "Would you like to remove it? (Y/n): " -n 1 -r && echo
+ read -p "Would you like to remove it? (y/N): " -n 1 -r && echo
if [[ $REPLY =~ ^[Yy]$ ]]; then
echo "removing old PostgreSQL data cluster at /var/discourse/shared/standalone/postgres_data_old..."
- rm -rf /var/discourse/shared/standalone/postgres_data_old
+ rm -rf /var/discourse/shared/standalone/postgres_data_old*
else
exit 1
fi
exit 0
}
-if [ -z "$command" -a -z "$config" ]; then
- usage
-fi
-
if [ ! "$command" == "setup" ]; then
if [[ ! -e $config_file ]]; then
echo "Config file was not found, ensure $config_file exists"
then
(
set -x
- $docker_path stop -t 10 $config
+ $docker_path stop -t 30 $config
)
else
echo "$config was not started !"
+ echo "./discourse-doctor may help diagnose the problem."
exit 1
fi
}
run_image=`cat $config_file | $docker_path run $user_args --rm -i -a stdin -a stdout $image ruby -e \
"require 'yaml'; puts YAML.load(STDIN.readlines.join)['run_image']"`
- if [ -z "$run_image" ]; then
+ if [ -n "$user_run_image" ]; then
+ run_image=$user_run_image
+ elif [ -z "$run_image" ]; then
run_image="$local_discourse/$config"
fi
}
fi
}
-run_start() {
+merge_user_args() {
+ local docker_args
- existing=`$docker_path ps | awk '{ print $1, $(NF) }' | grep " $config$" | awk '{ print $1 }'`
- echo $existing
- if [ ! -z $existing ]
- then
- echo "Nothing to do, your container has already started!"
- exit 0
- fi
+ docker_args=`cat $config_file | $docker_path run $user_args --rm -i -a stdout -a stdin $image ruby -e \
+ "require 'yaml'; puts YAML.load(STDIN.readlines.join)['docker_args']"`
- existing=`$docker_path ps -a | awk '{ print $1, $(NF) }' | grep " $config$" | awk '{ print $1 }'`
- if [ ! -z $existing ]
- then
- echo "starting up existing container"
- (
- set -x
- $docker_path start $config
- )
- exit 0
- fi
+ if [[ -n "$docker_args" ]]; then
+ user_args="$user_args_argv $docker_args"
+ fi
+}
- host_run
+run_start() {
- ports=`cat $config_file | $docker_path run $user_args --rm -i -a stdout -a stdin $image ruby -e \
- "require 'yaml'; puts YAML.load(STDIN.readlines.join)['expose'].map{|p| \"-p #{p}\"}.join(' ')"`
+ if [ -z "$START_CMD_ONLY" ]
+ then
+ existing=`$docker_path ps | awk '{ print $1, $(NF) }' | grep " $config$" | awk '{ print $1 }'`
+ echo $existing
+ if [ ! -z $existing ]
+ then
+ echo "Nothing to do, your container has already started!"
+ exit 0
+ fi
- docker_args=`cat $config_file | $docker_path run $user_args --rm -i -a stdout -a stdin $image ruby -e \
- "require 'yaml'; puts YAML.load(STDIN.readlines.join)['docker_args']"`
+ existing=`$docker_path ps -a | awk '{ print $1, $(NF) }' | grep " $config$" | awk '{ print $1 }'`
+ if [ ! -z $existing ]
+ then
+ echo "starting up existing container"
+ (
+ set -x
+ $docker_path start $config
+ )
+ exit 0
+ fi
+ fi
set_template_info
set_volumes
mac_address="--mac-address $($docker_path run $user_args -i --rm -a stdout -a stderr $image /bin/sh -c "echo $hostname | md5sum | sed 's/^\(..\)\(..\)\(..\)\(..\)\(..\).*$/02:\1:\2:\3:\4:\5/'")"
fi
+ if [ ! -z "$START_CMD_ONLY" ] ; then
+ docker_path="true"
+ fi
+
set -x
+
$docker_path run --shm-size=512m $links $attach_on_run $restart_policy "${env[@]}" "${labels[@]}" -h "$hostname" \
- -e DOCKER_HOST_IP="$docker_ip" --name $config -t $ports $volumes $mac_address $docker_args $user_args \
+ -e DOCKER_HOST_IP="$docker_ip" --name $config -t "${ports[@]}" $volumes $mac_address $user_args \
$run_image $boot_command
)
}
+run_run() {
+ set_template_info
+ set_volumes
+ set_links
+ set_run_image
-run_bootstrap() {
+ unset ERR
+ (exec $docker_path run --rm --shm-size=512m $user_args $links "${env[@]}" -e DOCKER_HOST_IP="$docker_ip" -i -a stdin -a stdout -a stderr $volumes $run_image \
+ /bin/bash -c "$run_command") || ERR=$?
- # I got no frigging clue what this does, ask Sam Saffron. It RUNS STUFF ON THE HOST I GUESS?
- host_run
+ if [[ $ERR > 0 ]]; then
+ exit 1
+ fi
+}
+run_bootstrap() {
# Is the image available?
# If not, pull it here so the user is aware what's happening.
- $docker_path history $image >/dev/null 2>&1 || $docker_path pull $image
+ $docker_path history $image >/dev/null 2>&1 || pull_image
set_template_info
echo $run_command
unset ERR
- (exec echo "$input" | $docker_path run --shm-size=512m $user_args $links "${env[@]}" -e DOCKER_HOST_IP="$docker_ip" --cidfile $cidbootstrap -i -a stdin -a stdout -a stderr $volumes $image \
+
+ tmp_input_file=$(mktemp)
+
+ echo "$input" > "$tmp_input_file"
+ (exec cat "$tmp_input_file" | $docker_path run --shm-size=512m $user_args $links "${env[@]}" -e DOCKER_HOST_IP="$docker_ip" --cidfile $cidbootstrap -i -a stdin -a stdout -a stderr $volumes $image \
/bin/bash -c "$run_command") || ERR=$?
+ rm -f "$tmp_input_file"
+
unset FAILED
# magic exit code that indicates a retry
if [[ "$ERR" == 77 ]]; then
$docker_path rm `cat $cidbootstrap`
rm $cidbootstrap
- echo "** FAILED TO BOOTSTRAP ** please scroll up and look for earlier error messages, there may be more than one"
+ echo "** FAILED TO BOOTSTRAP ** please scroll up and look for earlier error messages, there may be more than one."
+ echo "./discourse-doctor may help diagnose the problem."
exit 1
fi
$docker_path rm `cat $cidbootstrap` && rm $cidbootstrap
}
-
-
case "$command" in
bootstrap)
run_bootstrap
exit 0
;;
+ run)
+ run_run
+ exit 0
+ ;;
+
enter)
exec $docker_path exec -it $config /bin/bash --login
;;
exit 0
;;
+ start-cmd)
+ START_CMD_ONLY="1"
+ run_start
+ exit 0;
+ ;;
+
start)
run_start
exit 0
git remote update
- LOCAL=$(git rev-parse @)
+ LOCAL=$(git rev-parse HEAD)
REMOTE=$(git rev-parse @{u})
- BASE=$(git merge-base @ @{u})
+ BASE=$(git merge-base HEAD @{u})
if [ $LOCAL = $REMOTE ]; then
echo "Launcher is up-to-date"
elif [ $LOCAL = $BASE ]; then
- echo "Updating Launcher"
+ echo "Updating Launcher..."
git pull || (echo 'failed to update' && exit 1)
- for (( i=${#BASH_ARGV[@]}-1,j=0; i>=0,j<${#BASH_ARGV[@]}; i--,j++ ))
- do
- args[$j]=${BASH_ARGV[$i]}
- done
- exec /bin/bash $0 "${args[@]}" # $@ is empty, because of shift at the beginning. Use BASH_ARGV instead.
+ echo "Launcher updated, restarting..."
+ exec "$0" "${SAVED_ARGV[@]}"
elif [ $REMOTE = $BASE ]; then
echo "Your version of Launcher is ahead of origin"
echo "Stopping old container"
(
set -x
- $docker_path stop -t 10 $config
+ $docker_path stop -t 60 $config
)
fi
projects / discourse_docker.git / blobdiff