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 "$0")" |
55d17203 | 8 | |
60668406 | 9 | docker_min_version='0.9.1' |
e6cf1591 | 10 | docker_rec_version='0.11.0' |
60668406 | 11 | |
8dea575c | 12 | config_file=containers/"$config".yml |
7e738616 | 13 | cidfile=cids/"$config".cid |
1acce9e4 | 14 | cidbootstrap=cids/"$config"_boostrap.cid |
5efded6a | 15 | local_discourse=local_discourse |
5103dbed | 16 | image=samsaffron/discourse:0.2.0 |
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" | |
5f803fb4 | 33 | echo " ssh: Start a bash shell in a running container" |
1acce9e4 | 34 | echo " logs: Docker logs for container" |
7936ebaa | 35 | echo " mailtest: Test the mail settings in a container" |
408a9c19 | 36 | echo " bootstrap: Bootstrap a container for the config based on a template" |
680dd4ea | 37 | echo " rebuild: Rebuild a container (destroy old, bootstrap, start new)" |
55d17203 RW |
38 | echo |
39 | echo "Options:" | |
40 | echo " --skip-prereqs Don't check prerequisites" | |
7e738616 S |
41 | exit 1 |
42 | } | |
43 | ||
60668406 DP |
44 | compare_version() { |
45 | declare -a ver_a | |
46 | declare -a ver_b | |
47 | IFS=. read -a ver_a <<< "$1" | |
48 | IFS=. read -a ver_b <<< "$2" | |
49 | ||
50 | while [[ -n $ver_a ]]; do | |
51 | if (( ver_a > ver_b )); then | |
52 | return 0 | |
53 | elif (( ver_b > ver_a )); then | |
54 | return 1 | |
55 | else | |
56 | unset ver_a[0] | |
57 | ver_a=("${ver_a[@]}") | |
58 | unset ver_b[0] | |
59 | ver_b=("${ver_b[@]}") | |
60 | fi | |
61 | done | |
62 | return 1 # They are equal | |
63 | } | |
64 | ||
a3e18d95 S |
65 | prereqs() { |
66 | ||
e741295a | 67 | # 1. docker daemon running? |
4807b1b8 | 68 | test=`$docker_path info >/dev/null` |
e741295a MB |
69 | |
70 | if [[ $? -ne 0 ]] ; then | |
71 | echo "Cannot connect to the docker daemon - verify it is running and you have access" | |
72 | exit 1 | |
73 | fi | |
74 | ||
75 | # 2. running aufs | |
4807b1b8 | 76 | test=`$docker_path info 2> /dev/null | grep 'Driver: aufs'` |
a3e18d95 S |
77 | if [[ "$test" =~ "aufs" ]] ; then : ; else |
78 | echo "Your Docker installation is not using aufs" | |
79 | echo "Device mapper and other experimental drivers are unstable" | |
80 | echo | |
81 | echo "Please ensure your kernel is running linux extras and aufs" | |
82 | echo "Please follow the installation guide for Docker here: http://docs.docker.io/en/latest/installation/ubuntulinux/" | |
83 | exit 1 | |
84 | fi | |
85 | ||
60668406 DP |
86 | # 3. running recommended docker version |
87 | test=($($docker_path --version)) # Get docker version string | |
88 | test=${test[2]//,/} # Get version alone and strip comma if exists | |
a3e18d95 | 89 | |
60668406 DP |
90 | # At least minimum version |
91 | if compare_version "${socker_min_version}" "${test}"; then | |
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_ $config_data" | |
181 | ||
182 | read -r -d '' env_ruby << 'RUBY' | |
183 | require 'yaml' | |
184 | ||
185 | input=STDIN.readlines.join | |
186 | env = {} | |
187 | input.split('_FILE_SEPERATOR_').each do |yml| | |
188 | yml.strip! | |
189 | begin | |
190 | env.merge!(YAML.load(yml)['env'] || {}) | |
191 | rescue => e | |
192 | puts yml | |
193 | p e | |
194 | end | |
195 | end | |
4b563ee8 | 196 | puts env.map{|k,v| "-e\n#{k}=#{v}" }.join("\n") |
7f77c274 SS |
197 | RUBY |
198 | ||
4807b1b8 | 199 | raw=`exec echo "$input" | $docker_path run --rm -i -a stdin -a stdout $image ruby -e "$env_ruby"` |
4b563ee8 SS |
200 | |
201 | env=() | |
202 | while read i; do | |
16f2d250 S |
203 | if [ -n "$i" ]; then |
204 | env[${#env[@]}]=$i | |
205 | fi | |
4b563ee8 SS |
206 | done <<< "$raw" |
207 | ||
208 | echo "Calculated ENV: ${env[@]}" | |
7f77c274 SS |
209 | } |
210 | ||
52388b87 SS |
211 | [ -z $docker_path ] && { |
212 | install_docker | |
213 | } | |
214 | ||
5f803fb4 | 215 | |
c1005add | 216 | [ $# -lt 2 ] && { |
5f803fb4 SS |
217 | usage |
218 | } | |
219 | ||
7e738616 S |
220 | if [ ! -e $config_file ] |
221 | then | |
222 | echo "Config file was not found, ensure $config_file exists" | |
223 | exit 1 | |
224 | fi | |
225 | ||
337a89aa | 226 | |
7936ebaa MB |
227 | run_mailtest(){ |
228 | if [ ! -e $config_file ]; then | |
229 | echo "Config does not exist: $config_file" >&2 | |
230 | exit 1 | |
231 | fi | |
232 | exec scripts/mailtest $config_file | |
233 | } | |
234 | ||
337a89aa S |
235 | run_stop(){ |
236 | if [ ! -e $cidfile ] | |
237 | then | |
238 | echo "No cid found" | |
239 | exit 1 | |
240 | else | |
4807b1b8 | 241 | $docker_path stop -t 10 `cat $cidfile` |
337a89aa S |
242 | fi |
243 | } | |
244 | ||
245 | run_start(){ | |
246 | ||
247 | if [ ! -e $cidfile ] | |
248 | then | |
249 | echo "No cid found, creating a new container" | |
4807b1b8 | 250 | ports=`cat $config_file | $docker_path run --rm -i -a stdout -a stdin $image ruby -e \ |
337a89aa S |
251 | "require 'yaml'; puts YAML.load(STDIN.readlines.join)['expose'].map{|p| '-p ' << p.to_s << ' '}.join"` |
252 | ||
253 | set_template_info | |
254 | set_volumes | |
255 | ||
4807b1b8 | 256 | existing=`$docker_path ps -a | awk '{ print $1, $(NF) }' | grep "$config$" | awk '{ print $1 }'` |
337a89aa S |
257 | if [ ! -z $existing ] |
258 | then | |
259 | echo "Found an existing container by its name, recovering cidfile, please rerun" | |
260 | echo $existing > $cidfile | |
261 | exit 1 | |
262 | fi | |
263 | ||
4807b1b8 | 264 | $docker_path run "${env[@]}" -h "`hostname`-$config" -e DOCKER_HOST_IP=$docker_ip --name $config -t --cidfile $cidfile $ports \ |
337a89aa S |
265 | -d $volumes $local_discourse/$config /usr/bin/runsvdir -P /etc/service |
266 | ||
267 | exit 0 | |
268 | else | |
269 | cid=`cat $cidfile` | |
270 | ||
271 | if [ -z $cid ] | |
272 | then | |
273 | echo "Detected empty cid file, deleting, please re-run" | |
274 | rm $cidfile | |
275 | exit 1 | |
276 | fi | |
277 | ||
4807b1b8 | 278 | found=`$docker_path ps -q -a --no-trunc | grep $cid` |
337a89aa S |
279 | if [ -z $found ] |
280 | then | |
281 | echo "Invalid cid file, deleting, please re-run" | |
282 | rm $cidfile | |
283 | exit 1 | |
284 | fi | |
285 | ||
286 | echo "cid found, ensuring container is started" | |
4807b1b8 | 287 | $docker_path start `cat $cidfile` |
337a89aa S |
288 | exit 0 |
289 | fi | |
290 | ||
291 | } | |
292 | ||
680dd4ea S |
293 | run_bootstrap(){ |
294 | get_ssh_pub_key | |
88126eba | 295 | |
680dd4ea S |
296 | # Is the image available? |
297 | # If not, pull it here so the user is aware what's happening. | |
4807b1b8 | 298 | $docker_path history $image >/dev/null 2>&1 || $docker_path pull $image |
88126eba | 299 | |
680dd4ea | 300 | set_template_info |
93149421 | 301 | |
4807b1b8 | 302 | base_image=`cat $config_file | $docker_path run --rm -i -a stdin -a stdout $image ruby -e \ |
680dd4ea | 303 | "require 'yaml'; puts YAML.load(STDIN.readlines.join)['base_image']"` |
93149421 | 304 | |
4807b1b8 | 305 | update_pups=`cat $config_file | $docker_path run --rm -i -a stdin -a stdout $image ruby -e \ |
680dd4ea | 306 | "require 'yaml'; puts YAML.load(STDIN.readlines.join)['update_pups']"` |
b9c7b50e | 307 | |
680dd4ea S |
308 | if [[ ! X"" = X"$base_image" ]]; then |
309 | image=$base_image | |
310 | fi | |
b9c7b50e | 311 | |
680dd4ea | 312 | set_volumes |
b9c7b50e | 313 | |
680dd4ea | 314 | rm -f $cidbootstrap |
d90671f3 | 315 | |
680dd4ea S |
316 | run_command="cd /pups &&" |
317 | if [[ ! "false" = $update_pups ]]; then | |
318 | run_command="$run_command git pull &&" | |
319 | fi | |
320 | run_command="$run_command /pups/bin/pups --stdin" | |
2162f1d4 | 321 | |
680dd4ea | 322 | echo $run_command |
b9c7b50e | 323 | |
680dd4ea | 324 | env=("${env[@]}" "-e" "SSH_PUB_KEY=$ssh_pub_key") |
c4498636 | 325 | |
4807b1b8 | 326 | (exec echo "$input" | $docker_path run "${env[@]}" -e DOCKER_HOST_IP=$docker_ip --cidfile $cidbootstrap -i -a stdin -a stdout -a stderr $volumes $image \ |
680dd4ea | 327 | /bin/bash -c "$run_command") \ |
4807b1b8 | 328 | || ($docker_path rm `cat $cidbootstrap` && rm $cidbootstrap) |
88126eba | 329 | |
680dd4ea | 330 | [ ! -e $cidbootstrap ] && echo "FAILED TO BOOTSTRAP" && exit 1 |
9fb5f2d3 | 331 | |
680dd4ea | 332 | sleep 5 |
2162f1d4 | 333 | |
4807b1b8 MB |
334 | $docker_path commit `cat $cidbootstrap` $local_discourse/$config || echo 'FAILED TO COMMIT' |
335 | $docker_path rm `cat $cidbootstrap` && rm $cidbootstrap | |
680dd4ea | 336 | } |
9fb5f2d3 | 337 | |
680dd4ea S |
338 | case "$command" in |
339 | bootstrap) | |
680dd4ea | 340 | run_bootstrap |
2dd2e330 | 341 | echo "Successfully bootstrapped, to startup use ./launcher start $config" |
4b3aebe1 | 342 | exit 0 |
5f803fb4 | 343 | ;; |
1acce9e4 | 344 | |
7936ebaa MB |
345 | mailtest) |
346 | run_mailtest | |
347 | exit 0 | |
348 | ;; | |
349 | ||
5f803fb4 SS |
350 | ssh) |
351 | if [ ! -e $cidfile ] | |
352 | then | |
353 | echo "No cid found" | |
354 | exit 1 | |
355 | else | |
356 | cid="`cat $cidfile`" | |
4807b1b8 | 357 | address="`$docker_path port $cid 22`" |
5f803fb4 | 358 | split=(${address//:/ }) |
38c09f5e | 359 | exec ssh -o StrictHostKeyChecking=no root@${split[0]} -p ${split[1]} |
5f803fb4 SS |
360 | fi |
361 | ;; | |
7e738616 | 362 | |
5f803fb4 | 363 | stop) |
337a89aa S |
364 | run_stop |
365 | exit 0 | |
5f803fb4 | 366 | ;; |
7e738616 | 367 | |
5f803fb4 | 368 | logs) |
7e738616 | 369 | |
5f803fb4 SS |
370 | if [ ! -e $cidfile ] |
371 | then | |
372 | echo "No cid found" | |
373 | exit 1 | |
374 | else | |
4807b1b8 | 375 | $docker_path logs `cat $cidfile` |
5f803fb4 SS |
376 | exit 0 |
377 | fi | |
378 | ;; | |
7e738616 | 379 | |
337a89aa S |
380 | restart) |
381 | run_stop | |
382 | run_start | |
383 | exit 0 | |
384 | ;; | |
80c11be3 | 385 | |
337a89aa S |
386 | start) |
387 | run_start | |
388 | exit 0 | |
5f803fb4 | 389 | ;; |
7e738616 | 390 | |
680dd4ea S |
391 | rebuild) |
392 | if [ -e $cidfile ] | |
393 | then | |
394 | echo "Stopping old container" | |
4807b1b8 | 395 | $docker_path stop -t 10 `cat $cidfile` |
680dd4ea S |
396 | fi |
397 | ||
398 | run_bootstrap | |
399 | ||
400 | if [ -e $cidfile ] | |
401 | then | |
4807b1b8 | 402 | $docker_path rm `cat $cidfile` && rm $cidfile |
680dd4ea S |
403 | fi |
404 | ||
405 | run_start | |
406 | exit 0 | |
407 | ;; | |
408 | ||
7e738616 | 409 | |
5f803fb4 SS |
410 | destroy) |
411 | if [ -e $cidfile ] | |
412 | then | |
413 | echo "destroying container $cidfile" | |
4807b1b8 MB |
414 | $docker_path stop -t 10 `cat $cidfile` |
415 | $docker_path rm `cat $cidfile` && rm $cidfile | |
5f803fb4 SS |
416 | exit 0 |
417 | else | |
418 | echo "nothing to destroy cidfile does not exist" | |
419 | exit 1 | |
420 | fi | |
421 | ;; | |
422 | esac | |
7e738616 | 423 | |
5f803fb4 | 424 | usage |