| 1 | #!/usr/bin/env bash |
| 2 | |
| 3 | usage () { |
| 4 | echo "Usage: launcher COMMAND CONFIG [--skip-prereqs] [--docker-args STRING]" |
| 5 | echo "Commands:" |
| 6 | echo " start: Start/initialize a container" |
| 7 | echo " stop: Stop a running container" |
| 8 | echo " restart: Restart a container" |
| 9 | echo " destroy: Stop and remove a container" |
| 10 | echo " enter: Open a shell to run commands inside the container" |
| 11 | echo " logs: View the Docker logs for a container" |
| 12 | echo " bootstrap: Bootstrap a container for the config based on a template" |
| 13 | echo " run: Run the given command with the config in the context of the last bootstrapped image" |
| 14 | echo " rebuild: Rebuild a container (destroy old, bootstrap, start new)" |
| 15 | echo " cleanup: Remove all containers that have stopped for > 24 hours" |
| 16 | echo " start-cmd: Generate docker command used to start container" |
| 17 | echo |
| 18 | echo "Options:" |
| 19 | echo " --skip-prereqs Don't check launcher prerequisites" |
| 20 | echo " --docker-args Extra arguments to pass when running docker" |
| 21 | echo " --skip-mac-address Don't assign a mac address" |
| 22 | echo " --run-image Override the image used for running the container" |
| 23 | exit 1 |
| 24 | } |
| 25 | |
| 26 | command=$1 |
| 27 | config=$2 |
| 28 | |
| 29 | # user_args_argv is assigned once when the argument vector is parsed. |
| 30 | user_args_argv="" |
| 31 | # user_args is mutable: its value may change when templates are parsed. |
| 32 | # Superset of user_args_argv. |
| 33 | user_args="" |
| 34 | |
| 35 | user_run_image="" |
| 36 | |
| 37 | if [[ $command == "run" ]]; then |
| 38 | run_command=$3 |
| 39 | fi |
| 40 | |
| 41 | while [ ${#} -gt 0 ]; do |
| 42 | case "${1}" in |
| 43 | --debug) |
| 44 | DEBUG="1" |
| 45 | ;; |
| 46 | --skip-prereqs) |
| 47 | SKIP_PREREQS="1" |
| 48 | ;; |
| 49 | --skip-mac-address) |
| 50 | SKIP_MAC_ADDRESS="1" |
| 51 | ;; |
| 52 | --docker-args) |
| 53 | user_args_argv="$2" |
| 54 | user_args="$user_args_argv" |
| 55 | shift |
| 56 | ;; |
| 57 | --run-image) |
| 58 | user_run_image="$2" |
| 59 | shift |
| 60 | ;; |
| 61 | esac |
| 62 | |
| 63 | shift 1 |
| 64 | done |
| 65 | |
| 66 | if [ -z "$command" -o -z "$config" -a "$command" != "cleanup" ]; then |
| 67 | usage |
| 68 | exit 1 |
| 69 | fi |
| 70 | |
| 71 | # Docker doesn't like uppercase characters, spaces or special characters, catch it now before we build everything out and then find out |
| 72 | re='[[:upper:]/ !@#$%^&*()+~`=]' |
| 73 | if [[ $config =~ $re ]]; |
| 74 | then |
| 75 | echo |
| 76 | echo "ERROR: Config name '$config' must not contain upper case characters, spaces or special characters. Correct config name and rerun $0." |
| 77 | echo |
| 78 | exit 1 |
| 79 | fi |
| 80 | |
| 81 | cd "$(dirname "$0")" |
| 82 | |
| 83 | docker_min_version='17.03.1' |
| 84 | docker_rec_version='17.06.2' |
| 85 | git_min_version='1.8.0' |
| 86 | git_rec_version='1.8.0' |
| 87 | |
| 88 | config_file=containers/"$config".yml |
| 89 | cidbootstrap=cids/"$config"_bootstrap.cid |
| 90 | local_discourse=local_discourse |
| 91 | image="discourse/base:2.0.20200220-2221" |
| 92 | docker_path=`which docker.io 2> /dev/null || which docker` |
| 93 | git_path=`which git` |
| 94 | |
| 95 | if [ "${SUPERVISED}" = "true" ]; then |
| 96 | restart_policy="--restart=no" |
| 97 | attach_on_start="-a" |
| 98 | attach_on_run="-a stdout -a stderr" |
| 99 | else |
| 100 | attach_on_run="-d" |
| 101 | fi |
| 102 | |
| 103 | if [ -n "$DOCKER_HOST" ]; then |
| 104 | docker_ip=`sed -e 's/^tcp:\/\/\(.*\):.*$/\1/' <<< "$DOCKER_HOST"` |
| 105 | elif [ -x "$(which ip 2>/dev/null)" ]; then |
| 106 | docker_ip=`ip addr show docker0 | \ |
| 107 | grep 'inet ' | \ |
| 108 | awk '{ split($2,a,"/"); print a[1] }';` |
| 109 | else |
| 110 | docker_ip=`ifconfig | \ |
| 111 | grep -B1 "inet addr" | \ |
| 112 | awk '{ if ( $1 == "inet" ) { print $2 } else if ( $2 == "Link" ) { printf "%s:" ,$1 } }' | \ |
| 113 | grep docker0 | \ |
| 114 | awk -F: '{ print $3 }';` |
| 115 | fi |
| 116 | |
| 117 | # From https://stackoverflow.com/a/44660519/702738 |
| 118 | compare_version() { |
| 119 | if [[ $1 == $2 ]]; then |
| 120 | return 1 |
| 121 | fi |
| 122 | local IFS=. |
| 123 | local i a=(${1%%[^0-9.]*}) b=(${2%%[^0-9.]*}) |
| 124 | local arem=${1#${1%%[^0-9.]*}} brem=${2#${2%%[^0-9.]*}} |
| 125 | for ((i=0; i<${#a[@]} || i<${#b[@]}; i++)); do |
| 126 | if ((10#${a[i]:-0} < 10#${b[i]:-0})); then |
| 127 | return 1 |
| 128 | elif ((10#${a[i]:-0} > 10#${b[i]:-0})); then |
| 129 | return 0 |
| 130 | fi |
| 131 | done |
| 132 | if [ "$arem" '<' "$brem" ]; then |
| 133 | return 1 |
| 134 | elif [ "$arem" '>' "$brem" ]; then |
| 135 | return 0 |
| 136 | fi |
| 137 | return 1 |
| 138 | } |
| 139 | |
| 140 | |
| 141 | install_docker() { |
| 142 | echo "Docker is not installed, you will need to install Docker in order to run Launcher" |
| 143 | echo "See https://docs.docker.com/installation/" |
| 144 | exit 1 |
| 145 | } |
| 146 | |
| 147 | check_prereqs() { |
| 148 | |
| 149 | if [ -z $docker_path ]; then |
| 150 | install_docker |
| 151 | fi |
| 152 | |
| 153 | # 1. docker daemon running? |
| 154 | # we send stderr to /dev/null cause we don't care about warnings, |
| 155 | # it usually complains about swap which does not matter |
| 156 | test=`$docker_path info 2> /dev/null` |
| 157 | if [[ $? -ne 0 ]] ; then |
| 158 | echo "Cannot connect to the docker daemon - verify it is running and you have access" |
| 159 | exit 1 |
| 160 | fi |
| 161 | |
| 162 | # 2. running an approved storage driver? |
| 163 | if ! $docker_path info 2> /dev/null | egrep -q 'Storage Driver: (aufs|zfs|overlay2)$'; then |
| 164 | echo "Your Docker installation is not using a supported storage driver. If we were to proceed you may have a broken install." |
| 165 | echo "aufs is the recommended storage driver, although zfs and overlay2 may work as well." |
| 166 | echo "Other storage drivers are known to be problematic." |
| 167 | echo "You can tell what filesystem you are using by running \"docker info\" and looking at the 'Storage Driver' line." |
| 168 | echo |
| 169 | echo "If you wish to continue anyway using your existing unsupported storage driver," |
| 170 | echo "read the source code of launcher and figure out how to bypass this check." |
| 171 | exit 1 |
| 172 | fi |
| 173 | |
| 174 | # 3. running recommended docker version |
| 175 | test=($($docker_path --version)) # Get docker version string |
| 176 | test=${test[2]//,/} # Get version alone and strip comma if exists |
| 177 | |
| 178 | # At least minimum docker version |
| 179 | if compare_version "${docker_min_version}" "${test}"; then |
| 180 | echo "ERROR: Docker version ${test} not supported, please upgrade to at least ${docker_min_version}, or recommended ${docker_rec_version}" |
| 181 | exit 1 |
| 182 | fi |
| 183 | |
| 184 | # Recommend newer docker version |
| 185 | if compare_version "${docker_rec_version}" "${test}"; then |
| 186 | echo "WARNING: Docker version ${test} deprecated, recommend upgrade to ${docker_rec_version} or newer." |
| 187 | fi |
| 188 | |
| 189 | # 4. discourse docker image is downloaded |
| 190 | test=`$docker_path images | awk '{print $1 ":" $2 }' | grep "$image"` |
| 191 | |
| 192 | if [ -z "$test" ]; then |
| 193 | echo |
| 194 | echo "WARNING: We are about to start downloading the Discourse base image" |
| 195 | echo "This process may take anywhere between a few minutes to an hour, depending on your network speed" |
| 196 | echo |
| 197 | echo "Please be patient" |
| 198 | echo |
| 199 | fi |
| 200 | |
| 201 | # 5. running recommended git version |
| 202 | test=($($git_path --version)) # Get git version string |
| 203 | test=${test[2]//,/} # Get version alone and strip comma if exists |
| 204 | |
| 205 | # At least minimum version |
| 206 | if compare_version "${git_min_version}" "${test}"; then |
| 207 | echo "ERROR: Git version ${test} not supported, please upgrade to at least ${git_min_version}, or recommended ${git_rec_version}" |
| 208 | exit 1 |
| 209 | fi |
| 210 | |
| 211 | # Recommend best version |
| 212 | if compare_version "${git_rec_version}" "${test}"; then |
| 213 | echo "WARNING: Git version ${test} deprecated, recommend upgrade to ${git_rec_version} or newer." |
| 214 | fi |
| 215 | |
| 216 | # 6. able to attach stderr / out / tty |
| 217 | test=`$docker_path run $user_args -i --rm -a stdout -a stderr $image echo working` |
| 218 | if [[ "$test" =~ "working" ]] ; then : ; else |
| 219 | echo "Your Docker installation is not working correctly" |
| 220 | echo |
| 221 | echo "See: https://meta.discourse.org/t/docker-error-on-bootstrap/13657/18?u=sam" |
| 222 | exit 1 |
| 223 | fi |
| 224 | |
| 225 | # 7. enough space for the bootstrap on docker folder |
| 226 | folder=`$docker_path info --format '{{.DockerRootDir}}'` |
| 227 | safe_folder=${folder:-/var/lib/docker} |
| 228 | test=$(($(stat -f --format="%a*%S" $safe_folder)/1024**3 < 5)) |
| 229 | if [[ $test -ne 0 ]] ; then |
| 230 | echo "You have less than 5GB of free space on the disk where $safe_folder is located. You will need more space to continue" |
| 231 | df -h $safe_folder |
| 232 | echo |
| 233 | if tty >/dev/null; then |
| 234 | read -p "Would you like to attempt to recover space by cleaning docker images and containers in the system?(y/N)" -n 1 -r |
| 235 | echo |
| 236 | if [[ $REPLY =~ ^[Yy]$ ]] |
| 237 | then |
| 238 | $docker_path container prune --force --filter until=1h >/dev/null |
| 239 | $docker_path image prune --all --force --filter until=1h >/dev/null |
| 240 | echo "If the cleanup was successful, you may try again now" |
| 241 | fi |
| 242 | fi |
| 243 | exit 1 |
| 244 | fi |
| 245 | } |
| 246 | |
| 247 | |
| 248 | if [ -z "$SKIP_PREREQS" ] && [ "$command" != "cleanup" ]; then |
| 249 | check_prereqs |
| 250 | fi |
| 251 | |
| 252 | host_run() { |
| 253 | read -r -d '' env_ruby << 'RUBY' |
| 254 | require 'yaml' |
| 255 | |
| 256 | input = STDIN.readlines.join |
| 257 | yaml = YAML.load(input) |
| 258 | |
| 259 | if host_run = yaml['host_run'] |
| 260 | params = yaml['params'] || {} |
| 261 | host_run.each do |run| |
| 262 | params.each do |k,v| |
| 263 | run = run.gsub("$#{k}", v) |
| 264 | end |
| 265 | STDOUT.write "#{run}--SEP--" |
| 266 | end |
| 267 | end |
| 268 | RUBY |
| 269 | |
| 270 | host_run=`cat $config_file | $docker_path run $user_args --rm -i -a stdout -a stdin $image ruby -e "$env_ruby"` |
| 271 | |
| 272 | while [ "$host_run" ] ; do |
| 273 | iter=${host_run%%--SEP--*} |
| 274 | echo |
| 275 | echo "Host run: $iter" |
| 276 | $iter || exit 1 |
| 277 | echo |
| 278 | host_run="${host_run#*--SEP--}" |
| 279 | done |
| 280 | } |
| 281 | |
| 282 | |
| 283 | set_volumes() { |
| 284 | volumes=`cat $config_file | $docker_path run $user_args --rm -i -a stdout -a stdin $image ruby -e \ |
| 285 | "require 'yaml'; puts YAML.load(STDIN.readlines.join)['volumes'].map{|v| '-v ' << v['volume']['host'] << ':' << v['volume']['guest'] << ' '}.join"` |
| 286 | } |
| 287 | |
| 288 | set_links() { |
| 289 | links=`cat $config_file | $docker_path run $user_args --rm -i -a stdout -a stdin $image ruby -e \ |
| 290 | "require 'yaml'; puts YAML.load(STDIN.readlines.join)['links'].map{|l| '--link ' << l['link']['name'] << ':' << l['link']['alias'] << ' '}.join"` |
| 291 | } |
| 292 | |
| 293 | find_templates() { |
| 294 | local templates=`cat $1 | $docker_path run $user_args --rm -i -a stdin -a stdout $image ruby -e \ |
| 295 | "require 'yaml'; puts YAML.load(STDIN.readlines.join)['templates']"` |
| 296 | |
| 297 | local arrTemplates=${templates// / } |
| 298 | |
| 299 | if [ ! -z "$templates" ]; then |
| 300 | for template in "${arrTemplates[@]}" |
| 301 | do |
| 302 | local nested_templates=$(find_templates $template) |
| 303 | |
| 304 | if [ ! -z "$nested_templates" ]; then |
| 305 | templates="$templates $nested_templates" |
| 306 | fi |
| 307 | done |
| 308 | |
| 309 | echo $templates |
| 310 | else |
| 311 | echo "" |
| 312 | fi |
| 313 | } |
| 314 | |
| 315 | set_template_info() { |
| 316 | templates=$(find_templates $config_file) |
| 317 | |
| 318 | arrTemplates=(${templates// / }) |
| 319 | config_data=$(cat $config_file) |
| 320 | |
| 321 | input="hack: true" |
| 322 | |
| 323 | for template in "${arrTemplates[@]}" |
| 324 | do |
| 325 | [ ! -z $template ] && { |
| 326 | input="$input _FILE_SEPERATOR_ $(cat $template)" |
| 327 | } |
| 328 | done |
| 329 | |
| 330 | # we always want our config file last so it takes priority |
| 331 | input="$input _FILE_SEPERATOR_ $config_data" |
| 332 | |
| 333 | read -r -d '' env_ruby << 'RUBY' |
| 334 | require 'yaml' |
| 335 | |
| 336 | input=STDIN.readlines.join |
| 337 | # default to UTF-8 for the dbs sake |
| 338 | env = {'LANG' => 'en_US.UTF-8'} |
| 339 | input.split('_FILE_SEPERATOR_').each do |yml| |
| 340 | yml.strip! |
| 341 | begin |
| 342 | env.merge!(YAML.load(yml)['env'] || {}) |
| 343 | rescue Psych::SyntaxError => e |
| 344 | puts e |
| 345 | puts "*ERROR." |
| 346 | rescue => e |
| 347 | puts yml |
| 348 | p e |
| 349 | end |
| 350 | end |
| 351 | puts env.map{|k,v| "-e\n#{k}=#{v}" }.join("\n") |
| 352 | RUBY |
| 353 | |
| 354 | tmp_input_file=$(mktemp) |
| 355 | |
| 356 | echo "$input" > "$tmp_input_file" |
| 357 | raw=`exec cat "$tmp_input_file" | $docker_path run $user_args --rm -i -a stdin -a stdout $image ruby -e "$env_ruby"` |
| 358 | |
| 359 | rm -f "$tmp_input_file" |
| 360 | |
| 361 | env=() |
| 362 | ok=1 |
| 363 | while read i; do |
| 364 | if [ "$i" == "*ERROR." ]; then |
| 365 | ok=0 |
| 366 | elif [ -n "$i" ]; then |
| 367 | env[${#env[@]}]="${i//\{\{config\}\}/${config}}" |
| 368 | fi |
| 369 | done <<< "$raw" |
| 370 | |
| 371 | if [ "$ok" -ne 1 ]; then |
| 372 | echo "${env[@]}" |
| 373 | echo "YAML syntax error. Please check your containers/*.yml config files." |
| 374 | exit 1 |
| 375 | fi |
| 376 | |
| 377 | # labels |
| 378 | read -r -d '' labels_ruby << 'RUBY' |
| 379 | require 'yaml' |
| 380 | |
| 381 | input=STDIN.readlines.join |
| 382 | labels = {} |
| 383 | input.split('_FILE_SEPERATOR_').each do |yml| |
| 384 | yml.strip! |
| 385 | begin |
| 386 | labels.merge!(YAML.load(yml)['labels'] || {}) |
| 387 | rescue Psych::SyntaxError => e |
| 388 | puts e |
| 389 | puts "*ERROR." |
| 390 | rescue => e |
| 391 | puts yml |
| 392 | p e |
| 393 | end |
| 394 | end |
| 395 | puts labels.map{|k,v| "-l\n#{k}=#{v}" }.join("\n") |
| 396 | RUBY |
| 397 | |
| 398 | tmp_input_file=$(mktemp) |
| 399 | |
| 400 | echo "$input" > "$tmp_input_file" |
| 401 | raw=`exec cat "$tmp_input_file" | $docker_path run $user_args --rm -i -a stdin -a stdout $image ruby -e "$labels_ruby"` |
| 402 | |
| 403 | rm -f "$tmp_input_file" |
| 404 | |
| 405 | labels=() |
| 406 | ok=1 |
| 407 | while read i; do |
| 408 | if [ "$i" == "*ERROR." ]; then |
| 409 | ok=0 |
| 410 | elif [ -n "$i" ]; then |
| 411 | labels[${#labels[@]}]=$(echo $i | sed s/{{config}}/${config}/g) |
| 412 | fi |
| 413 | done <<< "$raw" |
| 414 | |
| 415 | if [ "$ok" -ne 1 ]; then |
| 416 | echo "${labels[@]}" |
| 417 | echo "YAML syntax error. Please check your containers/*.yml config files." |
| 418 | exit 1 |
| 419 | fi |
| 420 | |
| 421 | # expose |
| 422 | read -r -d '' ports_ruby << 'RUBY' |
| 423 | require 'yaml' |
| 424 | |
| 425 | input=STDIN.readlines.join |
| 426 | ports = [] |
| 427 | input.split('_FILE_SEPERATOR_').each do |yml| |
| 428 | yml.strip! |
| 429 | begin |
| 430 | ports += (YAML.load(yml)['expose'] || []) |
| 431 | rescue Psych::SyntaxError => e |
| 432 | puts e |
| 433 | puts "*ERROR." |
| 434 | rescue => e |
| 435 | puts yml |
| 436 | p e |
| 437 | end |
| 438 | end |
| 439 | puts ports.map { |p| p.to_s.include?(':') ? "-p\n#{p}" : "--expose\n#{p}" }.join("\n") |
| 440 | RUBY |
| 441 | |
| 442 | tmp_input_file=$(mktemp) |
| 443 | |
| 444 | echo "$input" > "$tmp_input_file" |
| 445 | raw=`exec cat "$tmp_input_file" | $docker_path run $user_args --rm -i -a stdin -a stdout $image ruby -e "$ports_ruby"` |
| 446 | |
| 447 | rm -f "$tmp_input_file" |
| 448 | |
| 449 | ports=() |
| 450 | ok=1 |
| 451 | while read i; do |
| 452 | if [ "$i" == "*ERROR." ]; then |
| 453 | ok=0 |
| 454 | elif [ -n "$i" ]; then |
| 455 | ports[${#ports[@]}]=$i |
| 456 | fi |
| 457 | done <<< "$raw" |
| 458 | |
| 459 | if [ "$ok" -ne 1 ]; then |
| 460 | echo "${ports[@]}" |
| 461 | echo "YAML syntax error. Please check your containers/*.yml config files." |
| 462 | exit 1 |
| 463 | fi |
| 464 | |
| 465 | merge_user_args |
| 466 | } |
| 467 | |
| 468 | if [ -z $docker_path ]; then |
| 469 | install_docker |
| 470 | fi |
| 471 | |
| 472 | [ "$command" == "cleanup" ] && { |
| 473 | $docker_path container prune --filter until=1h |
| 474 | $docker_path image prune --all --filter until=1h |
| 475 | |
| 476 | if [ -d /var/discourse/shared/standalone/postgres_data_old ]; then |
| 477 | echo |
| 478 | echo "Old PostgreSQL backup data cluster detected taking up $(du -hs /var/discourse/shared/standalone/postgres_data_old | awk '{print $1}') detected" |
| 479 | read -p "Would you like to remove it? (Y/n): " -n 1 -r && echo |
| 480 | |
| 481 | if [[ $REPLY =~ ^[Yy]$ ]]; then |
| 482 | echo "removing old PostgreSQL data cluster at /var/discourse/shared/standalone/postgres_data_old..." |
| 483 | rm -rf /var/discourse/shared/standalone/postgres_data_old |
| 484 | else |
| 485 | exit 1 |
| 486 | fi |
| 487 | fi |
| 488 | |
| 489 | exit 0 |
| 490 | } |
| 491 | |
| 492 | if [ ! "$command" == "setup" ]; then |
| 493 | if [[ ! -e $config_file ]]; then |
| 494 | echo "Config file was not found, ensure $config_file exists" |
| 495 | echo |
| 496 | echo "Available configs ( `cd containers && ls -dm *.yml | tr -s '\n' ' ' | awk '{ gsub(/\.yml/, ""); print }'`)" |
| 497 | exit 1 |
| 498 | fi |
| 499 | fi |
| 500 | |
| 501 | docker_version=($($docker_path --version)) |
| 502 | docker_version=${test[2]//,/} |
| 503 | restart_policy=${restart_policy:---restart=always} |
| 504 | |
| 505 | set_existing_container(){ |
| 506 | existing=`$docker_path ps -a | awk '{ print $1, $(NF) }' | grep " $config$" | awk '{ print $1 }'` |
| 507 | } |
| 508 | |
| 509 | run_stop() { |
| 510 | |
| 511 | set_existing_container |
| 512 | |
| 513 | if [ ! -z $existing ] |
| 514 | then |
| 515 | ( |
| 516 | set -x |
| 517 | $docker_path stop -t 10 $config |
| 518 | ) |
| 519 | else |
| 520 | echo "$config was not started !" |
| 521 | echo "./discourse-doctor may help diagnose the problem." |
| 522 | exit 1 |
| 523 | fi |
| 524 | } |
| 525 | |
| 526 | set_run_image() { |
| 527 | run_image=`cat $config_file | $docker_path run $user_args --rm -i -a stdin -a stdout $image ruby -e \ |
| 528 | "require 'yaml'; puts YAML.load(STDIN.readlines.join)['run_image']"` |
| 529 | |
| 530 | if [ -n "$user_run_image" ]; then |
| 531 | run_image=$user_run_image |
| 532 | elif [ -z "$run_image" ]; then |
| 533 | run_image="$local_discourse/$config" |
| 534 | fi |
| 535 | } |
| 536 | |
| 537 | set_boot_command() { |
| 538 | boot_command=`cat $config_file | $docker_path run $user_args --rm -i -a stdin -a stdout $image ruby -e \ |
| 539 | "require 'yaml'; puts YAML.load(STDIN.readlines.join)['boot_command']"` |
| 540 | |
| 541 | if [ -z "$boot_command" ]; then |
| 542 | |
| 543 | no_boot_command=`cat $config_file | $docker_path run $user_args --rm -i -a stdin -a stdout $image ruby -e \ |
| 544 | "require 'yaml'; puts YAML.load(STDIN.readlines.join)['no_boot_command']"` |
| 545 | |
| 546 | if [ -z "$no_boot_command" ]; then |
| 547 | boot_command="/sbin/boot" |
| 548 | fi |
| 549 | fi |
| 550 | } |
| 551 | |
| 552 | merge_user_args() { |
| 553 | local docker_args |
| 554 | |
| 555 | docker_args=`cat $config_file | $docker_path run $user_args --rm -i -a stdout -a stdin $image ruby -e \ |
| 556 | "require 'yaml'; puts YAML.load(STDIN.readlines.join)['docker_args']"` |
| 557 | |
| 558 | if [[ -n "$docker_args" ]]; then |
| 559 | user_args="$user_args_argv $docker_args" |
| 560 | fi |
| 561 | } |
| 562 | |
| 563 | run_start() { |
| 564 | |
| 565 | if [ -z "$START_CMD_ONLY" ] |
| 566 | then |
| 567 | existing=`$docker_path ps | awk '{ print $1, $(NF) }' | grep " $config$" | awk '{ print $1 }'` |
| 568 | echo $existing |
| 569 | if [ ! -z $existing ] |
| 570 | then |
| 571 | echo "Nothing to do, your container has already started!" |
| 572 | exit 0 |
| 573 | fi |
| 574 | |
| 575 | existing=`$docker_path ps -a | awk '{ print $1, $(NF) }' | grep " $config$" | awk '{ print $1 }'` |
| 576 | if [ ! -z $existing ] |
| 577 | then |
| 578 | echo "starting up existing container" |
| 579 | ( |
| 580 | set -x |
| 581 | $docker_path start $config |
| 582 | ) |
| 583 | exit 0 |
| 584 | fi |
| 585 | fi |
| 586 | |
| 587 | host_run |
| 588 | |
| 589 | set_template_info |
| 590 | set_volumes |
| 591 | set_links |
| 592 | set_run_image |
| 593 | set_boot_command |
| 594 | |
| 595 | # get hostname and settings from container configuration |
| 596 | for envar in "${env[@]}" |
| 597 | do |
| 598 | if [[ $envar == DOCKER_USE_HOSTNAME* ]] || [[ $envar == DISCOURSE_HOSTNAME* ]] |
| 599 | then |
| 600 | # use as environment variable |
| 601 | eval $envar |
| 602 | fi |
| 603 | done |
| 604 | |
| 605 | ( |
| 606 | hostname=`hostname -s` |
| 607 | # overwrite hostname |
| 608 | if [ "$DOCKER_USE_HOSTNAME" = "true" ] |
| 609 | then |
| 610 | hostname=$DISCOURSE_HOSTNAME |
| 611 | else |
| 612 | hostname=$hostname-$config |
| 613 | fi |
| 614 | |
| 615 | # we got to normalize so we only have allowed strings, this is more comprehensive but lets see how bash does first |
| 616 | # hostname=`$docker_path run $user_args --rm $image ruby -e 'print ARGV[0].gsub(/[^a-zA-Z-]/, "-")' $hostname` |
| 617 | # docker added more hostname rules |
| 618 | hostname=${hostname//_/-} |
| 619 | |
| 620 | |
| 621 | if [ -z "$SKIP_MAC_ADDRESS" ] ; then |
| 622 | mac_address="--mac-address $($docker_path run $user_args -i --rm -a stdout -a stderr $image /bin/sh -c "echo $hostname | md5sum | sed 's/^\(..\)\(..\)\(..\)\(..\)\(..\).*$/02:\1:\2:\3:\4:\5/'")" |
| 623 | fi |
| 624 | |
| 625 | if [ ! -z "$START_CMD_ONLY" ] ; then |
| 626 | docker_path="true" |
| 627 | fi |
| 628 | |
| 629 | set -x |
| 630 | |
| 631 | $docker_path run --shm-size=512m $links $attach_on_run $restart_policy "${env[@]}" "${labels[@]}" -h "$hostname" \ |
| 632 | -e DOCKER_HOST_IP="$docker_ip" --name $config -t "${ports[@]}" $volumes $mac_address $user_args \ |
| 633 | $run_image $boot_command |
| 634 | |
| 635 | ) |
| 636 | exit 0 |
| 637 | |
| 638 | } |
| 639 | |
| 640 | run_run() { |
| 641 | set_template_info |
| 642 | set_volumes |
| 643 | set_links |
| 644 | set_run_image |
| 645 | |
| 646 | unset ERR |
| 647 | (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 $run_image \ |
| 648 | /bin/bash -c "$run_command") || ERR=$? |
| 649 | |
| 650 | if [[ $ERR > 0 ]]; then |
| 651 | exit 1 |
| 652 | fi |
| 653 | } |
| 654 | |
| 655 | run_bootstrap() { |
| 656 | host_run |
| 657 | |
| 658 | # Is the image available? |
| 659 | # If not, pull it here so the user is aware what's happening. |
| 660 | $docker_path history $image >/dev/null 2>&1 || $docker_path pull $image |
| 661 | |
| 662 | set_template_info |
| 663 | |
| 664 | base_image=`cat $config_file | $docker_path run $user_args --rm -i -a stdin -a stdout $image ruby -e \ |
| 665 | "require 'yaml'; puts YAML.load(STDIN.readlines.join)['base_image']"` |
| 666 | |
| 667 | update_pups=`cat $config_file | $docker_path run $user_args --rm -i -a stdin -a stdout $image ruby -e \ |
| 668 | "require 'yaml'; puts YAML.load(STDIN.readlines.join)['update_pups']"` |
| 669 | |
| 670 | if [[ ! X"" = X"$base_image" ]]; then |
| 671 | image=$base_image |
| 672 | fi |
| 673 | |
| 674 | set_volumes |
| 675 | set_links |
| 676 | |
| 677 | rm -f $cidbootstrap |
| 678 | |
| 679 | run_command="cd /pups &&" |
| 680 | if [[ ! "false" = $update_pups ]]; then |
| 681 | run_command="$run_command git pull &&" |
| 682 | fi |
| 683 | run_command="$run_command /pups/bin/pups --stdin" |
| 684 | |
| 685 | echo $run_command |
| 686 | |
| 687 | unset ERR |
| 688 | |
| 689 | tmp_input_file=$(mktemp) |
| 690 | |
| 691 | echo "$input" > "$tmp_input_file" |
| 692 | (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 $image \ |
| 693 | /bin/bash -c "$run_command") || ERR=$? |
| 694 | |
| 695 | rm -f "$tmp_input_file" |
| 696 | |
| 697 | unset FAILED |
| 698 | # magic exit code that indicates a retry |
| 699 | if [[ "$ERR" == 77 ]]; then |
| 700 | $docker_path rm `cat $cidbootstrap` |
| 701 | rm $cidbootstrap |
| 702 | exit 77 |
| 703 | elif [[ "$ERR" > 0 ]]; then |
| 704 | FAILED=TRUE |
| 705 | fi |
| 706 | |
| 707 | if [[ $FAILED = "TRUE" ]]; then |
| 708 | if [[ ! -z "$DEBUG" ]]; then |
| 709 | $docker_path commit `cat $cidbootstrap` $local_discourse/$config-debug || echo 'FAILED TO COMMIT' |
| 710 | echo "** DEBUG ** Maintaining image for diagnostics $local_discourse/$config-debug" |
| 711 | fi |
| 712 | |
| 713 | $docker_path rm `cat $cidbootstrap` |
| 714 | rm $cidbootstrap |
| 715 | echo "** FAILED TO BOOTSTRAP ** please scroll up and look for earlier error messages, there may be more than one." |
| 716 | echo "./discourse-doctor may help diagnose the problem." |
| 717 | exit 1 |
| 718 | fi |
| 719 | |
| 720 | sleep 5 |
| 721 | |
| 722 | $docker_path commit `cat $cidbootstrap` $local_discourse/$config || echo 'FAILED TO COMMIT' |
| 723 | $docker_path rm `cat $cidbootstrap` && rm $cidbootstrap |
| 724 | } |
| 725 | |
| 726 | case "$command" in |
| 727 | bootstrap) |
| 728 | run_bootstrap |
| 729 | echo "Successfully bootstrapped, to startup use ./launcher start $config" |
| 730 | exit 0 |
| 731 | ;; |
| 732 | |
| 733 | run) |
| 734 | run_run |
| 735 | exit 0 |
| 736 | ;; |
| 737 | |
| 738 | enter) |
| 739 | exec $docker_path exec -it $config /bin/bash --login |
| 740 | ;; |
| 741 | |
| 742 | stop) |
| 743 | run_stop |
| 744 | exit 0 |
| 745 | ;; |
| 746 | |
| 747 | logs) |
| 748 | |
| 749 | $docker_path logs $config |
| 750 | exit 0 |
| 751 | ;; |
| 752 | |
| 753 | restart) |
| 754 | run_stop |
| 755 | run_start |
| 756 | exit 0 |
| 757 | ;; |
| 758 | |
| 759 | start-cmd) |
| 760 | START_CMD_ONLY="1" |
| 761 | run_start |
| 762 | exit 0; |
| 763 | ;; |
| 764 | |
| 765 | start) |
| 766 | run_start |
| 767 | exit 0 |
| 768 | ;; |
| 769 | |
| 770 | rebuild) |
| 771 | if [ "$(git symbolic-ref --short HEAD)" == "master" ]; then |
| 772 | echo "Ensuring launcher is up to date" |
| 773 | |
| 774 | git remote update |
| 775 | |
| 776 | LOCAL=$(git rev-parse HEAD) |
| 777 | REMOTE=$(git rev-parse @{u}) |
| 778 | BASE=$(git merge-base HEAD @{u}) |
| 779 | |
| 780 | if [ $LOCAL = $REMOTE ]; then |
| 781 | echo "Launcher is up-to-date" |
| 782 | |
| 783 | elif [ $LOCAL = $BASE ]; then |
| 784 | echo "Updating Launcher" |
| 785 | git pull || (echo 'failed to update' && exit 1) |
| 786 | |
| 787 | for (( i=${#BASH_ARGV[@]}-1,j=0; i>=0,j<${#BASH_ARGV[@]}; i--,j++ )) |
| 788 | do |
| 789 | args[$j]=${BASH_ARGV[$i]} |
| 790 | done |
| 791 | exec bash $0 "${args[@]}" # $@ is empty, because of shift at the beginning. Use BASH_ARGV instead. |
| 792 | |
| 793 | elif [ $REMOTE = $BASE ]; then |
| 794 | echo "Your version of Launcher is ahead of origin" |
| 795 | |
| 796 | else |
| 797 | echo "Launcher has diverged source, this is only expected in Dev mode" |
| 798 | fi |
| 799 | |
| 800 | fi |
| 801 | |
| 802 | set_existing_container |
| 803 | |
| 804 | if [ ! -z $existing ] |
| 805 | then |
| 806 | echo "Stopping old container" |
| 807 | ( |
| 808 | set -x |
| 809 | $docker_path stop -t 10 $config |
| 810 | ) |
| 811 | fi |
| 812 | |
| 813 | run_bootstrap |
| 814 | |
| 815 | if [ ! -z $existing ] |
| 816 | then |
| 817 | echo "Removing old container" |
| 818 | ( |
| 819 | set -x |
| 820 | $docker_path rm $config |
| 821 | ) |
| 822 | fi |
| 823 | |
| 824 | run_start |
| 825 | exit 0 |
| 826 | ;; |
| 827 | |
| 828 | |
| 829 | destroy) |
| 830 | (set -x; $docker_path stop -t 10 $config && $docker_path rm $config) || (echo "$config was not found" && exit 0) |
| 831 | exit 0 |
| 832 | ;; |
| 833 | esac |
| 834 | |
| 835 | usage |