Commit | Line | Data |
---|---|---|
ace450bd | 1 | #!/bin/bash |
7e738616 S |
2 | |
3 | command=$1 | |
4 | config=$2 | |
55d17203 RW |
5 | opt=$3 |
6 | ||
7936ebaa | 7 | cd "$(dirname "$0")" |
55d17203 | 8 | |
5701c085 S |
9 | docker_min_version='1.2.0' |
10 | docker_rec_version='1.2.0' | |
60668406 | 11 | |
8dea575c | 12 | config_file=containers/"$config".yml |
7e738616 | 13 | cidfile=cids/"$config".cid |
1acce9e4 | 14 | cidbootstrap=cids/"$config"_boostrap.cid |
5efded6a | 15 | local_discourse=local_discourse |
6510f3ec | 16 | image=samsaffron/discourse:1.0.3 |
4807b1b8 | 17 | docker_path=`which docker.io || which docker` |
7e738616 | 18 | |
80c11be3 SS |
19 | docker_ip=`/sbin/ifconfig | \ |
20 | grep -B1 "inet addr" | \ | |
21 | awk '{ if ( $1 == "inet" ) { print $2 } else if ( $2 == "Link" ) { printf "%s:" ,$1 } }' | \ | |
22 | grep docker0 | \ | |
23 | awk -F: '{ print $3 }';` | |
24 | ||
25 | ||
5f803fb4 | 26 | usage () { |
55d17203 | 27 | echo "Usage: launcher COMMAND CONFIG [--skip-prereqs]" |
7e738616 | 28 | echo "Commands:" |
1acce9e4 SS |
29 | echo " start: Start/initialize a container" |
30 | echo " stop: Stop a running container" | |
31 | echo " restart: Restart a container" | |
32 | echo " destroy: Stop and remove a container" | |
2fc6ff36 | 33 | echo " enter: Use nsenter to enter a container" |
5f803fb4 | 34 | echo " ssh: Start a bash shell in a running container" |
1acce9e4 | 35 | echo " logs: Docker logs for container" |
7936ebaa | 36 | echo " mailtest: Test the mail settings in a container" |
408a9c19 | 37 | echo " bootstrap: Bootstrap a container for the config based on a template" |
680dd4ea | 38 | echo " rebuild: Rebuild a container (destroy old, bootstrap, start new)" |
55d17203 RW |
39 | echo |
40 | echo "Options:" | |
41 | echo " --skip-prereqs Don't check prerequisites" | |
7e738616 S |
42 | exit 1 |
43 | } | |
44 | ||
60668406 DP |
45 | compare_version() { |
46 | declare -a ver_a | |
47 | declare -a ver_b | |
48 | IFS=. read -a ver_a <<< "$1" | |
49 | IFS=. read -a ver_b <<< "$2" | |
50 | ||
51 | while [[ -n $ver_a ]]; do | |
52 | if (( ver_a > ver_b )); then | |
53 | return 0 | |
54 | elif (( ver_b > ver_a )); then | |
55 | return 1 | |
56 | else | |
57 | unset ver_a[0] | |
58 | ver_a=("${ver_a[@]}") | |
59 | unset ver_b[0] | |
60 | ver_b=("${ver_b[@]}") | |
61 | fi | |
62 | done | |
63 | return 1 # They are equal | |
64 | } | |
65 | ||
a3e18d95 S |
66 | prereqs() { |
67 | ||
e741295a | 68 | # 1. docker daemon running? |
4807b1b8 | 69 | test=`$docker_path info >/dev/null` |
e741295a MB |
70 | |
71 | if [[ $? -ne 0 ]] ; then | |
72 | echo "Cannot connect to the docker daemon - verify it is running and you have access" | |
73 | exit 1 | |
74 | fi | |
75 | ||
2d7d1501 | 76 | # 2. running aufs |
4807b1b8 | 77 | test=`$docker_path info 2> /dev/null | grep 'Driver: aufs'` |
a3e18d95 | 78 | if [[ "$test" =~ "aufs" ]] ; then : ; else |
2d7d1501 S |
79 | echo "Your Docker installation is not using aufs, in the past we have had issues with it" |
80 | echo "If you are unable to bootstrap your image (or stop it) please report the issue at:" | |
81 | echo "https://meta.discourse.org/t/discourse-docker-installation-without-aufs/15639" | |
a3e18d95 S |
82 | fi |
83 | ||
60668406 DP |
84 | # 3. running recommended docker version |
85 | test=($($docker_path --version)) # Get docker version string | |
86 | test=${test[2]//,/} # Get version alone and strip comma if exists | |
a3e18d95 | 87 | |
cf00fce0 S |
88 | [[ "$test" =~ "0.12.0" ]] && echo "You are running a broken version of Docker, please upgrade ASAP. See: https://meta.discourse.org/t/the-installation-stopped-in-the-middle/16311/ for more details." && exit 1 |
89 | ||
60668406 | 90 | # At least minimum version |
cf00fce0 | 91 | if compare_version "${docker_min_version}" "${test}"; then |
60668406 | 92 | echo "ERROR: Docker version ${test} not supported, please upgrade to at least ${docker_min_version}, or recommended ${docker_rec_version}" |
a3e18d95 S |
93 | exit 1 |
94 | fi | |
95 | ||
60668406 DP |
96 | # Recommend best version |
97 | if compare_version "${docker_rec_version}" "${test}"; then | |
98 | echo "WARNING: Docker version ${test} deprecated, recommend upgrade to ${docker_rec_version} or newer." | |
99 | fi | |
100 | ||
e741295a | 101 | # 4. able to attach stderr / out / tty |
4807b1b8 | 102 | test=`$docker_path run -i --rm -a stdout -a stderr $image echo working` |
a3e18d95 S |
103 | if [[ "$test" =~ "working" ]] ; then : ; else |
104 | echo "Your Docker installation is not working correctly" | |
105 | echo | |
106 | echo "See: https://meta.discourse.org/t/docker-error-on-bootstrap/13657/18?u=sam" | |
107 | exit 1 | |
108 | fi | |
109 | } | |
110 | ||
55d17203 RW |
111 | if [ "$opt" != "--skip-prereqs" ] ; then |
112 | prereqs | |
113 | fi | |
a3e18d95 | 114 | |
88126eba | 115 | get_ssh_pub_key() { |
9d28af0e MB |
116 | if tty -s ; then |
117 | if [[ ! -e ~/.ssh/id_rsa.pub && ! -e ~/.ssh/id_dsa.pub ]] ; then | |
8aca5cb7 JA |
118 | echo "This user has no SSH key, but a SSH key is required to access the Discourse Docker container." |
119 | read -p "Generate a SSH key? (Y/n) " -n 1 -r | |
4c01e298 S |
120 | if [[ $REPLY =~ ^[Nn]$ ]] ; then |
121 | echo | |
122 | echo WARNING: You may not be able to log in to your container. | |
88126eba | 123 | echo |
88126eba S |
124 | else |
125 | echo | |
4c01e298 S |
126 | echo Generating SSH key |
127 | mkdir -p ~/.ssh && ssh-keygen -f ~/.ssh/id_rsa -t rsa -N '' | |
88126eba S |
128 | echo |
129 | fi | |
130 | fi | |
131 | fi | |
132 | ||
9d28af0e | 133 | ssh_pub_key="$(cat ~/.ssh/id_rsa.pub 2>/dev/null || cat ~/.ssh/id_dsa.pub)" |
88126eba S |
134 | } |
135 | ||
136 | ||
52388b87 SS |
137 | install_docker() { |
138 | ||
139 | echo "Docker is not installed, make sure you are running on the 3.8 kernel" | |
140 | echo "The best supported Docker release is Ubuntu 12.04.03 for it run the following" | |
141 | echo | |
142 | echo "sudo apt-get update" | |
143 | echo "sudo apt-get install linux-image-generic-lts-raring linux-headers-generic-lts-raring" | |
144 | echo "sudo reboot" | |
145 | echo | |
146 | ||
147 | echo "sudo sh -c \"wget -qO- https://get.docker.io/gpg | apt-key add -\"" | |
148 | echo "sudo sh -c \"echo deb http://get.docker.io/ubuntu docker main > /etc/apt/sources.list.d/docker.list\"" | |
149 | echo "sudo apt-get update" | |
150 | echo "sudo apt-get install lxc-docker" | |
151 | ||
152 | exit 1 | |
153 | } | |
154 | ||
d90671f3 | 155 | set_volumes() { |
4807b1b8 | 156 | volumes=`cat $config_file | $docker_path run --rm -i -a stdout -a stdin $image ruby -e \ |
d90671f3 SS |
157 | "require 'yaml'; puts YAML.load(STDIN.readlines.join)['volumes'].map{|v| '-v ' << v['volume']['host'] << ':' << v['volume']['guest'] << ' '}.join"` |
158 | } | |
159 | ||
7f77c274 SS |
160 | set_template_info() { |
161 | ||
4807b1b8 | 162 | templates=`cat $config_file | $docker_path run --rm -i -a stdin -a stdout $image ruby -e \ |
7f77c274 SS |
163 | "require 'yaml'; puts YAML.load(STDIN.readlines.join)['templates']"` |
164 | ||
165 | ||
166 | arrTemplates=(${templates// / }) | |
167 | config_data=$(cat $config_file) | |
168 | ||
169 | input="hack: true" | |
170 | ||
171 | ||
172 | for template in "${arrTemplates[@]}" | |
173 | do | |
174 | [ ! -z $template ] && { | |
175 | input="$input _FILE_SEPERATOR_ $(cat $template)" | |
176 | } | |
177 | done | |
178 | ||
179 | # we always want our config file last so it takes priority | |
180 | input="$input _FILE_SEPERATOR_ $config_data" | |
181 | ||
182 | read -r -d '' env_ruby << 'RUBY' | |
183 | require 'yaml' | |
184 | ||
185 | input=STDIN.readlines.join | |
3cb3d9c4 S |
186 | # default to UTF-8 for the dbs sake |
187 | env = {'LANG' => 'en_US.UTF-8'} | |
7f77c274 SS |
188 | input.split('_FILE_SEPERATOR_').each do |yml| |
189 | yml.strip! | |
190 | begin | |
191 | env.merge!(YAML.load(yml)['env'] || {}) | |
f3824347 | 192 | rescue Psych::SyntaxError => e |
193 | puts e | |
194 | puts "*ERROR." | |
7f77c274 SS |
195 | rescue => e |
196 | puts yml | |
197 | p e | |
198 | end | |
199 | end | |
4b563ee8 | 200 | puts env.map{|k,v| "-e\n#{k}=#{v}" }.join("\n") |
7f77c274 SS |
201 | RUBY |
202 | ||
4807b1b8 | 203 | raw=`exec echo "$input" | $docker_path run --rm -i -a stdin -a stdout $image ruby -e "$env_ruby"` |
4b563ee8 SS |
204 | |
205 | env=() | |
f3824347 | 206 | ok=1 |
4b563ee8 | 207 | while read i; do |
f3824347 | 208 | if [ "$i" == "*ERROR." ]; then |
209 | ok=0 | |
210 | elif [ -n "$i" ]; then | |
16f2d250 S |
211 | env[${#env[@]}]=$i |
212 | fi | |
4b563ee8 SS |
213 | done <<< "$raw" |
214 | ||
f3824347 | 215 | if [ "$ok" -ne 1 ]; then |
216 | echo "${env[@]}" | |
a3322f2a | 217 | echo "YAML syntax error. Please check your /var/docker/containers/*.yml config files." |
f3824347 | 218 | exit 1 |
219 | fi | |
4b563ee8 | 220 | echo "Calculated ENV: ${env[@]}" |
7f77c274 SS |
221 | } |
222 | ||
52388b87 SS |
223 | [ -z $docker_path ] && { |
224 | install_docker | |
225 | } | |
226 | ||
5f803fb4 | 227 | |
c1005add | 228 | [ $# -lt 2 ] && { |
5f803fb4 SS |
229 | usage |
230 | } | |
231 | ||
7e738616 S |
232 | if [ ! -e $config_file ] |
233 | then | |
234 | echo "Config file was not found, ensure $config_file exists" | |
71680b16 S |
235 | echo "" |
236 | echo "Available configs ( `cd containers && ls -dm *.yml | tr -s '\n' ' ' | awk '{ gsub(/\.yml/, ""); print }'`)" | |
7e738616 S |
237 | exit 1 |
238 | fi | |
239 | ||
337a89aa | 240 | |
e2ed1fb6 S |
241 | docker_version=($($docker_path --version)) |
242 | docker_version=${test[2]//,/} | |
243 | ||
244 | if compare_version "1.2.0" "$docker_version"; then | |
245 | echo "We recommend you upgrade docker, the version you are running has no restart policies, on reboot your container may not start up" | |
246 | restart_policy="" | |
247 | else | |
b6227eb0 | 248 | restart_policy="--restart=always" |
e2ed1fb6 S |
249 | fi |
250 | ||
251 | ||
7936ebaa MB |
252 | run_mailtest(){ |
253 | if [ ! -e $config_file ]; then | |
254 | echo "Config does not exist: $config_file" >&2 | |
255 | exit 1 | |
256 | fi | |
257 | exec scripts/mailtest $config_file | |
258 | } | |
259 | ||
337a89aa S |
260 | run_stop(){ |
261 | if [ ! -e $cidfile ] | |
262 | then | |
263 | echo "No cid found" | |
264 | exit 1 | |
265 | else | |
4807b1b8 | 266 | $docker_path stop -t 10 `cat $cidfile` |
337a89aa S |
267 | fi |
268 | } | |
269 | ||
270 | run_start(){ | |
271 | ||
272 | if [ ! -e $cidfile ] | |
273 | then | |
274 | echo "No cid found, creating a new container" | |
4807b1b8 | 275 | ports=`cat $config_file | $docker_path run --rm -i -a stdout -a stdin $image ruby -e \ |
337a89aa S |
276 | "require 'yaml'; puts YAML.load(STDIN.readlines.join)['expose'].map{|p| '-p ' << p.to_s << ' '}.join"` |
277 | ||
278 | set_template_info | |
279 | set_volumes | |
280 | ||
4807b1b8 | 281 | existing=`$docker_path ps -a | awk '{ print $1, $(NF) }' | grep "$config$" | awk '{ print $1 }'` |
337a89aa S |
282 | if [ ! -z $existing ] |
283 | then | |
284 | echo "Found an existing container by its name, recovering cidfile, please rerun" | |
285 | echo $existing > $cidfile | |
286 | exit 1 | |
287 | fi | |
288 | ||
b6227eb0 | 289 | $docker_path run $restart_policy "${env[@]}" -h "`hostname`-$config" -e DOCKER_HOST_IP=$docker_ip --name $config -t --cidfile $cidfile $ports \ |
23022c1d | 290 | -d $volumes $local_discourse/$config /sbin/runit |
337a89aa S |
291 | |
292 | exit 0 | |
293 | else | |
294 | cid=`cat $cidfile` | |
295 | ||
296 | if [ -z $cid ] | |
297 | then | |
298 | echo "Detected empty cid file, deleting, please re-run" | |
299 | rm $cidfile | |
300 | exit 1 | |
301 | fi | |
302 | ||
4807b1b8 | 303 | found=`$docker_path ps -q -a --no-trunc | grep $cid` |
337a89aa S |
304 | if [ -z $found ] |
305 | then | |
306 | echo "Invalid cid file, deleting, please re-run" | |
307 | rm $cidfile | |
308 | exit 1 | |
309 | fi | |
310 | ||
311 | echo "cid found, ensuring container is started" | |
4807b1b8 | 312 | $docker_path start `cat $cidfile` |
337a89aa S |
313 | exit 0 |
314 | fi | |
315 | ||
316 | } | |
317 | ||
680dd4ea S |
318 | run_bootstrap(){ |
319 | get_ssh_pub_key | |
88126eba | 320 | |
680dd4ea S |
321 | # Is the image available? |
322 | # If not, pull it here so the user is aware what's happening. | |
4807b1b8 | 323 | $docker_path history $image >/dev/null 2>&1 || $docker_path pull $image |
88126eba | 324 | |
680dd4ea | 325 | set_template_info |
93149421 | 326 | |
4807b1b8 | 327 | base_image=`cat $config_file | $docker_path run --rm -i -a stdin -a stdout $image ruby -e \ |
680dd4ea | 328 | "require 'yaml'; puts YAML.load(STDIN.readlines.join)['base_image']"` |
93149421 | 329 | |
4807b1b8 | 330 | update_pups=`cat $config_file | $docker_path run --rm -i -a stdin -a stdout $image ruby -e \ |
680dd4ea | 331 | "require 'yaml'; puts YAML.load(STDIN.readlines.join)['update_pups']"` |
b9c7b50e | 332 | |
680dd4ea S |
333 | if [[ ! X"" = X"$base_image" ]]; then |
334 | image=$base_image | |
335 | fi | |
b9c7b50e | 336 | |
680dd4ea | 337 | set_volumes |
b9c7b50e | 338 | |
680dd4ea | 339 | rm -f $cidbootstrap |
d90671f3 | 340 | |
680dd4ea S |
341 | run_command="cd /pups &&" |
342 | if [[ ! "false" = $update_pups ]]; then | |
343 | run_command="$run_command git pull &&" | |
344 | fi | |
345 | run_command="$run_command /pups/bin/pups --stdin" | |
2162f1d4 | 346 | |
680dd4ea | 347 | echo $run_command |
b9c7b50e | 348 | |
680dd4ea | 349 | env=("${env[@]}" "-e" "SSH_PUB_KEY=$ssh_pub_key") |
c4498636 | 350 | |
4807b1b8 | 351 | (exec echo "$input" | $docker_path run "${env[@]}" -e DOCKER_HOST_IP=$docker_ip --cidfile $cidbootstrap -i -a stdin -a stdout -a stderr $volumes $image \ |
680dd4ea | 352 | /bin/bash -c "$run_command") \ |
4807b1b8 | 353 | || ($docker_path rm `cat $cidbootstrap` && rm $cidbootstrap) |
88126eba | 354 | |
680dd4ea | 355 | [ ! -e $cidbootstrap ] && echo "FAILED TO BOOTSTRAP" && exit 1 |
9fb5f2d3 | 356 | |
680dd4ea | 357 | sleep 5 |
2162f1d4 | 358 | |
4807b1b8 MB |
359 | $docker_path commit `cat $cidbootstrap` $local_discourse/$config || echo 'FAILED TO COMMIT' |
360 | $docker_path rm `cat $cidbootstrap` && rm $cidbootstrap | |
680dd4ea | 361 | } |
9fb5f2d3 | 362 | |
680dd4ea S |
363 | case "$command" in |
364 | bootstrap) | |
680dd4ea | 365 | run_bootstrap |
2dd2e330 | 366 | echo "Successfully bootstrapped, to startup use ./launcher start $config" |
4b3aebe1 | 367 | exit 0 |
5f803fb4 | 368 | ;; |
1acce9e4 | 369 | |
7936ebaa MB |
370 | mailtest) |
371 | run_mailtest | |
372 | exit 0 | |
373 | ;; | |
374 | ||
2fc6ff36 S |
375 | enter) |
376 | ||
377 | if [ ! -e $cidfile ] | |
378 | then | |
379 | echo "No cid found" | |
380 | exit 1 | |
381 | fi | |
382 | ||
383 | if [ ! $UID -eq 0 ] ; | |
384 | then | |
385 | echo "enter command must run as root, will attempt to sudo" | |
386 | echo | |
387 | fi | |
388 | ||
389 | if [ ! -e bin/nsenter ] | |
390 | then | |
391 | echo "Downloading nsenter" | |
392 | $docker_path pull samsaffron/nsenter | |
393 | ($docker_path run --rm samsaffron/nsenter cat /nsenter > bin/nsenter1) || exit 1 | |
394 | cp bin/nsenter1 bin/nsenter | |
395 | chmod +x bin/nsenter | |
396 | fi | |
397 | ||
398 | PID=$($docker_path inspect --format {{.State.Pid}} `cat $cidfile`) | |
399 | SHELL=/bin/bash sudo -E bin/nsenter --target $PID --mount --uts --ipc --net --pid | |
400 | ||
401 | exit 0; | |
402 | ;; | |
403 | ||
5f803fb4 SS |
404 | ssh) |
405 | if [ ! -e $cidfile ] | |
406 | then | |
407 | echo "No cid found" | |
408 | exit 1 | |
409 | else | |
410 | cid="`cat $cidfile`" | |
4807b1b8 | 411 | address="`$docker_path port $cid 22`" |
5f803fb4 | 412 | split=(${address//:/ }) |
38c09f5e | 413 | exec ssh -o StrictHostKeyChecking=no root@${split[0]} -p ${split[1]} |
5f803fb4 SS |
414 | fi |
415 | ;; | |
7e738616 | 416 | |
5f803fb4 | 417 | stop) |
337a89aa S |
418 | run_stop |
419 | exit 0 | |
5f803fb4 | 420 | ;; |
7e738616 | 421 | |
5f803fb4 | 422 | logs) |
7e738616 | 423 | |
5f803fb4 SS |
424 | if [ ! -e $cidfile ] |
425 | then | |
426 | echo "No cid found" | |
427 | exit 1 | |
428 | else | |
4807b1b8 | 429 | $docker_path logs `cat $cidfile` |
5f803fb4 SS |
430 | exit 0 |
431 | fi | |
432 | ;; | |
7e738616 | 433 | |
337a89aa S |
434 | restart) |
435 | run_stop | |
436 | run_start | |
437 | exit 0 | |
438 | ;; | |
80c11be3 | 439 | |
337a89aa S |
440 | start) |
441 | run_start | |
442 | exit 0 | |
5f803fb4 | 443 | ;; |
7e738616 | 444 | |
680dd4ea | 445 | rebuild) |
4b6456ef MB |
446 | if [ "$(git symbolic-ref --short HEAD)" == "master" ]; then |
447 | echo "Updating discourse docker" | |
448 | git pull || (echo 'failed to update' && exit 1) | |
449 | fi | |
680dd4ea S |
450 | if [ -e $cidfile ] |
451 | then | |
452 | echo "Stopping old container" | |
4807b1b8 | 453 | $docker_path stop -t 10 `cat $cidfile` |
680dd4ea S |
454 | fi |
455 | ||
456 | run_bootstrap | |
457 | ||
458 | if [ -e $cidfile ] | |
459 | then | |
4807b1b8 | 460 | $docker_path rm `cat $cidfile` && rm $cidfile |
680dd4ea S |
461 | fi |
462 | ||
463 | run_start | |
464 | exit 0 | |
465 | ;; | |
466 | ||
7e738616 | 467 | |
5f803fb4 SS |
468 | destroy) |
469 | if [ -e $cidfile ] | |
470 | then | |
471 | echo "destroying container $cidfile" | |
4807b1b8 MB |
472 | $docker_path stop -t 10 `cat $cidfile` |
473 | $docker_path rm `cat $cidfile` && rm $cidfile | |
5f803fb4 SS |
474 | exit 0 |
475 | else | |
476 | echo "nothing to destroy cidfile does not exist" | |
477 | exit 1 | |
478 | fi | |
479 | ;; | |
480 | esac | |
7e738616 | 481 | |
5f803fb4 | 482 | usage |