#!/bin/bash
usage () {
- echo "Usage: launcher COMMAND CONFIG [--skip-prereqs]"
+ 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: Use nsenter to enter a container"
- echo " logs: Docker logs for 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
echo "Options:"
- echo " --skip-prereqs Don't check prerequisites or resource requirements"
- echo " --docker-args Extra arguments to pass when running docker"
+ 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"
exit 1
}
command=$1
config=$2
-opt=$3
+user_args=""
+
+while [ ${#} -gt 0 ]; do
+ case "${1}" in
+ --debug)
+ DEBUG="1"
+ ;;
+ --skip-prereqs)
+ SKIP_PREREQS="1"
+ ;;
+ --skip-mac-address)
+ SKIP_MAC_ADDRESS="1"
+ ;;
+ --docker-args)
+ user_args="$2"
+ shift
+ ;;
+ esac
+
+ shift 1
+done
# Docker doesn't like uppercase characters, spaces or special characters, catch it now before we build everything out and then find out
re='[A-Z/ !@#$%^&*()+~`=]'
cd "$(dirname "$0")"
-docker_min_version='1.6.0'
-docker_rec_version='1.6.0'
+docker_min_version='1.8.0'
+docker_rec_version='1.8.0'
+git_min_version='1.8.0'
+git_rec_version='1.8.0'
config_file=containers/"$config".yml
cidbootstrap=cids/"$config"_bootstrap.cid
local_discourse=local_discourse
-image=discourse/discourse:1.0.17
+image=discourse/discourse:1.3.10
docker_path=`which docker.io || which docker`
-template_path=samples/standalone.yml
-changelog=/tmp/changelog # used to test whether sed did anything
+git_path=`which git`
if [ "${SUPERVISED}" = "true" ]; then
restart_policy="--restart=no"
install_docker() {
-
- echo "Docker is not installed, you will need to install Docker in order to run Discourse"
- echo "Please visit https://docs.docker.com/installation/ for instructions on how to do this for your system"
- echo
- echo "If you are running a recent Ubuntu Server, try the following:"
- echo "sudo apt-get install docker-engine"
-
+ echo "Docker is not installed, you will need to install Docker in order to run Launcher"
+ echo "See https://docs.docker.com/installation/"
exit 1
}
-prereqs() {
+check_prereqs() {
if [ -z $docker_path ]; then
install_docker
echo "Your Docker installation is not using a supported filesystem if we were to proceed you may have a broken install."
echo "aufs is the recommended filesystem you should be using (zfs/btrfs and overlay may work as well)"
echo "You can tell what filesystem you are using by running \"docker info\" and looking at the driver"
- echo ""
- echo "If you wish to continue anyway using your existing unsupported filesystem"
+ echo
+ echo "If you wish to continue anyway using your existing unsupported filesystem, "
echo "read the source code of launcher and figure out how to bypass this."
exit 1
fi
test=($($docker_path --version)) # Get docker version string
test=${test[2]//,/} # Get version alone and strip comma if exists
- # At least minimum version
+ # At least minimum docker version
if compare_version "${docker_min_version}" "${test}"; then
echo "ERROR: Docker version ${test} not supported, please upgrade to at least ${docker_min_version}, or recommended ${docker_rec_version}"
exit 1
fi
- # Recommend best version
+ # Recommend newer docker version
if compare_version "${docker_rec_version}" "${test}"; then
echo "WARNING: Docker version ${test} deprecated, recommend upgrade to ${docker_rec_version} or newer."
fi
echo
echo "Please be patient"
echo
-
fi
- # 5. able to attach stderr / out / tty
- test=`$docker_path run $user_args -i --rm -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"
+ # 5. running recommended git version
+ test=($($git_path --version)) # Get git version string
+ test=${test[2]//,/} # Get version alone and strip comma if exists
+
+ # At least minimum version
+ if compare_version "${git_min_version}" "${test}"; then
+ echo "ERROR: Git version ${test} not supported, please upgrade to at least ${git_min_version}, or recommended ${git_rec_version}"
exit 1
fi
-}
-
-check_resources() {
- # Memory
- resources="ok"
- avail_mem="$(LANG=C free -m | grep '^Mem:' | awk '{print $2}')"
- if [ "$avail_mem" -lt 900 ]; then
- resources="insufficient"
- echo "WARNING: You do not appear to have sufficient memory to run Discourse."
- echo
- echo "Your system may not work properly, or future upgrades of Discourse may"
- echo "not complete successfully."
- echo
- echo "See https://github.com/discourse/discourse/blob/master/docs/INSTALL-cloud.md#create-new-cloud-server"
- elif [ "$avail_mem" -lt 1800 ]; then
- total_swap="$(LANG=C free -m | grep ^Swap: | awk '{print $2}')"
- if [ "$total_swap" -lt 1000 ]; then
- resources="insufficient"
- echo "WARNING: You must have at least 1GB of swap when running with less"
- echo "than 2GB of RAM."
- echo
- echo "Your system may not work properly, or future upgrades of Discourse may"
- echo "not complete successfully."
- echo
- echo "See https://github.com/discourse/discourse/blob/master/docs/INSTALL-cloud.md#set-up-swap-if-needed"
- fi
+ # Recommend best version
+ if compare_version "${git_rec_version}" "${test}"; then
+ echo "WARNING: Git version ${test} deprecated, recommend upgrade to ${git_rec_version} or newer."
fi
- # Disk space
- free_disk="$(df /var | tail -n 1 | awk '{print $4}')"
- if [ "$free_disk" -lt 5000 ]; then
- resources="insufficient"
- echo "WARNING: You must have at least 5GB of *free* disk space to run Discourse."
- echo
- echo "Insufficient disk space may result in problems running your site, and may"
- echo "not even allow Discourse installation to complete successfully."
- echo
- echo "Please free up some space, or expand your disk, before continuing."
+ # 6. able to attach stderr / out / tty
+ test=`$docker_path run $user_args -i --rm -a stdout -a stderr $image echo working`
+ if [[ "$test" =~ "working" ]] ; then : ; else
+ echo "Your Docker installation is not working correctly"
echo
- echo "Run \`apt-get autoremove && apt-get autoclean\` to clean up unused packages and \`./launcher cleanup\` to remove stale Docker containers."
+ echo "See: https://meta.discourse.org/t/docker-error-on-bootstrap/13657/18?u=sam"
exit 1
fi
- if [ -t 0 ] && [ "$resources" != "ok" ]; then
- echo
- read -p "Press ENTER to continue, or Ctrl-C to exit and give your system more resources"
- fi
}
-check_ports() {
- local valid=$(netstat -tln | awk '{print $4}' | grep ":${1}\$")
- if [ -n "$valid" ]; then
- echo "Launcher has detected that port ${1} is in use."
- echo ""
- echo "If you are trying to run Discourse simultaneously with another web server like Apache or nginx, you will need to bind to a different port."
- echo "See https://meta.discourse.org/t/17247 for help."
- echo "To continue anyway, re-run Launcher with --skip-prereqs"
- exit 1
- fi
-}
-
-if [ "$opt" != "--skip-prereqs" ] ; then
- prereqs
-fi
-
-if [ "$opt" == "--docker-args" ] ; then
- user_args=$4
-else
- user_args=""
+if [ -z "$SKIP_PREREQS" ] ; then
+ check_prereqs
fi
host_run() {
"require 'yaml'; puts YAML.load(STDIN.readlines.join)['links'].map{|l| '--link ' << l['link']['name'] << ':' << l['link']['alias'] << ' '}.join"`
}
-set_template_info() {
-
- templates=`cat $config_file | $docker_path run $user_args --rm -i -a stdin -a stdout $image ruby -e \
+find_templates() {
+ local templates=`cat $1 | $docker_path run $user_args --rm -i -a stdin -a stdout $image ruby -e \
"require 'yaml'; puts YAML.load(STDIN.readlines.join)['templates']"`
+ local arrTemplates=${templates// / }
+
+ if [ ! -z "$templates" ]; then
+ for template in "${arrTemplates[@]}"
+ do
+ local nested_templates=$(find_templates $template)
+
+ if [ ! -z "$nested_templates" ]; then
+ templates="$templates $nested_templates"
+ fi
+ done
+
+ echo $templates
+ else
+ echo ""
+ fi
+}
+
+set_template_info() {
+ templates=$(find_templates $config_file)
+
arrTemplates=(${templates// / })
config_data=$(cat $config_file)
if [ "$ok" -ne 1 ]; then
echo "${env[@]}"
- echo "YAML syntax error. Please check your /var/discourse/containers/*.yml config files."
+ echo "YAML syntax error. Please check your containers/*.yml config files."
+ exit 1
+ fi
+
+ read -r -d '' labels_ruby << 'RUBY'
+ require 'yaml'
+
+ input=STDIN.readlines.join
+ # default to UTF-8 for the dbs sake
+ labels = {}
+ input.split('_FILE_SEPERATOR_').each do |yml|
+ yml.strip!
+ begin
+ labels.merge!(YAML.load(yml)['labels'] || {})
+ rescue Psych::SyntaxError => e
+ puts e
+ puts "*ERROR."
+ rescue => e
+ puts yml
+ p e
+ end
+ end
+ puts labels.map{|k,v| "-l\n#{k}=#{v}" }.join("\n")
+RUBY
+
+ raw=`exec echo "$input" | $docker_path run $user_args --rm -i -a stdin -a stdout $image ruby -e "$labels_ruby"`
+
+ labels=()
+ ok=1
+ while read i; do
+ if [ "$i" == "*ERROR." ]; then
+ ok=0
+ elif [ -n "$i" ]; then
+ labels[${#labels[@]}]=$i
+ fi
+ done <<< "$raw"
+
+ if [ "$ok" -ne 1 ]; then
+ echo "${labels[@]}"
+ echo "YAML syntax error. Please check your containers/*.yml config files."
exit 1
fi
}
exit 0
}
-[ $# -lt 2 ] && {
+if [ -z "$command" -a -z "$config" ]; then
usage
-}
+fi
-if [[ ! -e $config_file && $command -ne "memconfig" ]]
- then
+if [ ! "$command" == "setup" ]; then
+ if [[ ! -e $config_file ]]; then
echo "Config file was not found, ensure $config_file exists"
- echo ""
+ echo
echo "Available configs ( `cd containers && ls -dm *.yml | tr -s '\n' ' ' | awk '{ gsub(/\.yml/, ""); print }'`)"
exit 1
+ fi
fi
docker_version=($($docker_path --version))
fi
}
-scale_ram_and_cpu() {
-
- # get free mem
- avail_mem="$(LANG=C free -m | grep '^Mem:' | awk '{print $2}')"
- avail_gb=`expr $(($avail_mem / 950))`
- avail_cores=`grep -c processor /proc/cpuinfo`
- echo "Found ${avail_gb}GB of memory and $avail_cores CPU cores"
-
- # set db_shared_buffers: "128MB" (1GB) or 256MB * GB
- if [ "$avail_gb" -eq "1" ]
- then
- db_shared_buffers="128"
- else
- db_shared_buffers=`expr $avail_gb \* 256`
- fi
- sed -i -e "s/^ #db_shared_buffers:.*/ db_shared_buffers: \"${db_shared_buffers}MB\"/w $changelog" $config_file
- if [ -s $changelog ]
- then
- echo "setting db_shared_buffers = ${db_shared_buffers}MB based on detected CPU/RAM"
- rm $changelog
- fi
-
-
- # set UNICORN_WORKERS: 2*GB or 2*cores (the same on DO)
- if [ "$avail_gb" -le "2" ]
- then
- unicorn_workers=`expr $avail_gb \* 2`
- else
- unicorn_workers=`expr \$avail_cores \* 2`
- fi
- sed -i -e "s/^ #UNICORN_WORKERS:.*/ UNICORN_WORKERS: ${unicorn_workers}/w $changelog" $config_file
- if [ -s $changelog ]
- then
- echo "setting UNICORN_WORKERS = ${unicorn_workers} based on detected CPU/RAM"
- rm $changelog
- fi
-
-}
-
run_start() {
existing=`$docker_path ps | awk '{ print $1, $(NF) }' | grep " $config$" | awk '{ print $1 }'`
if [ ! -z $existing ]
then
echo "Nothing to do, your container has already started!"
- exit 1
+ exit 0
fi
existing=`$docker_path ps -a | awk '{ print $1, $(NF) }' | grep " $config$" | awk '{ print $1 }'`
fi
host_run
- ports=`cat $config_file | $docker_path run $user_args --rm -i -a stdout -a stdin $image ruby -e \
- "require 'yaml'; puts YAML.load(STDIN.readlines.join)['expose'].map{|p| \"-p #{p}\"}.join(' ')"`
- IFS='-p ' read -a array <<< "$ports"
- for element in "${array[@]}"
- do
- IFS=':' read -a args <<< "$element"
- if [ "${#args[@]}" == "2" ]; then
- check_ports "${args[0]}"
- elif [ "${#args[@]}" == "3" ]; then
- check_ports "${args[1]}"
- fi
- done
+ 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(' ')"`
docker_args=`cat $config_file | $docker_path run $user_args --rm -i -a stdout -a stdin $image ruby -e \
"require 'yaml'; puts YAML.load(STDIN.readlines.join)['docker_args']"`
# we got to normalize so we only have allowed strings, this is more comprehensive but lets see how bash does first
# hostname=`$docker_path run $user_args --rm $image ruby -e 'print ARGV[0].gsub(/[^a-zA-Z-]/, "-")' $hostname`
# docker added more hostname rules
- hostname=${hostname/_/-}
+ hostname=${hostname//_/-}
+
+
+ if [ -z "$SKIP_MAC_ADDRESS" ] ; then
+ 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
set -x
- $docker_path run $user_args $links $attach_on_run $restart_policy "${env[@]}" -h "$hostname" \
- -e DOCKER_HOST_IP=$docker_ip --name $config -t $ports $volumes $docker_args $run_image $boot_command
+ $docker_path run $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 \
+ $run_image $boot_command
)
exit 0
}
-valid_config_check() {
-
- valid_config="y"
- for x in DISCOURSE_SMTP_ADDRESS DISCOURSE_SMTP_USER_NAME DISCOURSE_SMTP_PASSWORD \
- DISCOURSE_DEVELOPER_EMAILS DISCOURSE_HOSTNAME
- do
- mail_var=`grep "^ $x:" $config_file`
- result=$?
- if (( result == 0 ))
- then
- if [[ $mail_var = *"example.com"* ]]
- then
- echo "Warning: $x left at incorrect default of example.com"
- valid_config="n"
- fi
- else
- echo "Warning: $x not configured."
- valid_config="n"
- fi
- done
- if [ -t 0 ] && [ "$valid_config" != "y" ]; then
- echo ""
- echo "Please edit $config_file to add missing settings."
- exit 1
- fi
-}
run_bootstrap() {
- # Does your system meet the minimum requirements?
- if [ "$opt" != "--skip-prereqs" ] ; then
- check_resources
- fi
-
- # is our configuration file valid?
- valid_config_check
-
- # make minor scaling adjustments for RAM and CPU
- scale_ram_and_cpu
-
+ # I got no frigging clue what this does, ask Sam Saffron. It RUNS STUFF ON THE HOST I GUESS?
host_run
# Is the image available?
echo $run_command
- (exec echo "$input" | $docker_path run $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") \
- || ($docker_path rm `cat $cidbootstrap` && rm $cidbootstrap)
+ unset ERR
+ (exec echo "$input" | $docker_path run $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=$?
+
+ unset FAILED
+ # magic exit code that indicates a retry
+ if [[ "$ERR" == 77 ]]; then
+ $docker_path rm `cat $cidbootstrap`
+ rm $cidbootstrap
+ exit 77
+ elif [[ "$ERR" > 0 ]]; then
+ FAILED=TRUE
+ fi
- [ ! -e $cidbootstrap ] && echo "** FAILED TO BOOTSTRAP ** please scroll up and look for earlier error messages, there may be more than one" && exit 1
+ if [[ $FAILED = "TRUE" ]]; then
+ if [[ ! -z "$DEBUG" ]]; then
+ $docker_path commit `cat $cidbootstrap` $local_discourse/$config-debug || echo 'FAILED TO COMMIT'
+ echo "** DEBUG ** Maintaining image for diagnostics $local_discourse/$config-debug"
+ fi
+
+ $docker_path rm `cat $cidbootstrap`
+ rm $cidbootstrap
+ echo "** FAILED TO BOOTSTRAP ** please scroll up and look for earlier error messages, there may be more than one"
+ exit 1
+ fi
sleep 5
rebuild)
if [ "$(git symbolic-ref --short HEAD)" == "master" ]; then
- echo "Ensuring discourse docker is up to date"
+ echo "Ensuring launcher is up to date"
git remote update
BASE=$(git merge-base @ @{u})
if [ $LOCAL = $REMOTE ]; then
- echo "Discourse Docker is up-to-date"
+ echo "Launcher is up-to-date"
elif [ $LOCAL = $BASE ]; then
- echo "Updating Discourse Docker"
+ echo "Updating Launcher"
git pull || (echo 'failed to update' && exit 1)
- exec /bin/bash $0 $@
+
+ for (( i=${#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.
elif [ $REMOTE = $BASE ]; then
- echo "Your version of Discourse Docker is ahead of origin"
+ echo "Your version of Launcher is ahead of origin"
else
- echo "Discourse Docker has diverged source, this is only expected in Dev mode"
+ echo "Launcher has diverged source, this is only expected in Dev mode"
fi
fi
projects / discourse_docker.git / blobdiff