Commit | Line | Data |
---|---|---|
ace450bd | 1 | #!/bin/bash |
7e738616 S |
2 | |
3 | command=$1 | |
4 | config=$2 | |
8dea575c | 5 | config_file=containers/"$config".yml |
7e738616 | 6 | cidfile=cids/"$config".cid |
1acce9e4 | 7 | cidbootstrap=cids/"$config"_boostrap.cid |
5efded6a | 8 | local_discourse=local_discourse |
d69fe0fb | 9 | image=samsaffron/discourse:0.1.2 |
52388b87 | 10 | docker_path=`which docker` |
7e738616 | 11 | |
80c11be3 SS |
12 | docker_ip=`/sbin/ifconfig | \ |
13 | grep -B1 "inet addr" | \ | |
14 | awk '{ if ( $1 == "inet" ) { print $2 } else if ( $2 == "Link" ) { printf "%s:" ,$1 } }' | \ | |
15 | grep docker0 | \ | |
16 | awk -F: '{ print $3 }';` | |
17 | ||
18 | ||
5f803fb4 | 19 | usage () { |
7e738616 S |
20 | echo "Usage: launcher COMMAND CONFIG" |
21 | echo "Commands:" | |
1acce9e4 SS |
22 | echo " start: Start/initialize a container" |
23 | echo " stop: Stop a running container" | |
24 | echo " restart: Restart a container" | |
25 | echo " destroy: Stop and remove a container" | |
5f803fb4 | 26 | echo " ssh: Start a bash shell in a running container" |
1acce9e4 | 27 | echo " logs: Docker logs for container" |
408a9c19 | 28 | echo " bootstrap: Bootstrap a container for the config based on a template" |
680dd4ea | 29 | echo " rebuild: Rebuild a container (destroy old, bootstrap, start new)" |
7e738616 S |
30 | exit 1 |
31 | } | |
32 | ||
a3e18d95 S |
33 | prereqs() { |
34 | ||
e741295a MB |
35 | # 1. docker daemon running? |
36 | test=`docker info >/dev/null` | |
37 | ||
38 | if [[ $? -ne 0 ]] ; then | |
39 | echo "Cannot connect to the docker daemon - verify it is running and you have access" | |
40 | exit 1 | |
41 | fi | |
42 | ||
43 | # 2. running aufs | |
a3e18d95 S |
44 | test=`docker info 2> /dev/null | grep 'Driver: aufs'` |
45 | if [[ "$test" =~ "aufs" ]] ; then : ; else | |
46 | echo "Your Docker installation is not using aufs" | |
47 | echo "Device mapper and other experimental drivers are unstable" | |
48 | echo | |
49 | echo "Please ensure your kernel is running linux extras and aufs" | |
50 | echo "Please follow the installation guide for Docker here: http://docs.docker.io/en/latest/installation/ubuntulinux/" | |
51 | exit 1 | |
52 | fi | |
53 | ||
e741295a | 54 | # 3. running docker 0.9+ |
a3e18d95 S |
55 | test=`docker --version | grep 0.9` |
56 | ||
57 | if [[ "$test" =~ "0.9" ]] ; then : ; else | |
58 | echo "Your Docker installation is old, please upgrade to 0.9.0 or up" | |
59 | exit 1 | |
60 | fi | |
61 | ||
e741295a | 62 | # 4. able to attach stderr / out / tty |
d5b528da | 63 | test=`docker run -i --rm -a stdin -a stdout -a stderr $image echo working` |
a3e18d95 S |
64 | if [[ "$test" =~ "working" ]] ; then : ; else |
65 | echo "Your Docker installation is not working correctly" | |
66 | echo | |
67 | echo "See: https://meta.discourse.org/t/docker-error-on-bootstrap/13657/18?u=sam" | |
68 | exit 1 | |
69 | fi | |
70 | } | |
71 | ||
72 | prereqs | |
73 | ||
88126eba | 74 | get_ssh_pub_key() { |
9d28af0e MB |
75 | if tty -s ; then |
76 | if [[ ! -e ~/.ssh/id_rsa.pub && ! -e ~/.ssh/id_dsa.pub ]] ; then | |
88126eba S |
77 | echo You have no SSH key associated to this profile |
78 | echo "(This will allow you ssh access into your container)" | |
79 | read -p "Generate SSH key at ~/.ssh/id_rsa.pub? (y/N) " -n 1 -r | |
9d28af0e | 80 | if [[ $REPLY =~ ^[Yy]$ ]] ; then |
88126eba S |
81 | echo |
82 | echo Generating SSH key | |
9d28af0e | 83 | mkdir -p ~/.ssh && ssh-keygen -f ~/.ssh/id_rsa -t rsa -N '' |
88126eba S |
84 | else |
85 | echo | |
86 | echo WARNING: You may not be able to log in to your container. | |
87 | echo | |
88 | fi | |
89 | fi | |
90 | fi | |
91 | ||
9d28af0e | 92 | ssh_pub_key="$(cat ~/.ssh/id_rsa.pub 2>/dev/null || cat ~/.ssh/id_dsa.pub)" |
88126eba S |
93 | } |
94 | ||
95 | ||
52388b87 SS |
96 | install_docker() { |
97 | ||
98 | echo "Docker is not installed, make sure you are running on the 3.8 kernel" | |
99 | echo "The best supported Docker release is Ubuntu 12.04.03 for it run the following" | |
100 | echo | |
101 | echo "sudo apt-get update" | |
102 | echo "sudo apt-get install linux-image-generic-lts-raring linux-headers-generic-lts-raring" | |
103 | echo "sudo reboot" | |
104 | echo | |
105 | ||
106 | echo "sudo sh -c \"wget -qO- https://get.docker.io/gpg | apt-key add -\"" | |
107 | echo "sudo sh -c \"echo deb http://get.docker.io/ubuntu docker main > /etc/apt/sources.list.d/docker.list\"" | |
108 | echo "sudo apt-get update" | |
109 | echo "sudo apt-get install lxc-docker" | |
110 | ||
111 | exit 1 | |
112 | } | |
113 | ||
d90671f3 | 114 | set_volumes() { |
c4498636 | 115 | volumes=`cat $config_file | docker run --rm -i -a stdout -a stdin $image ruby -e \ |
d90671f3 SS |
116 | "require 'yaml'; puts YAML.load(STDIN.readlines.join)['volumes'].map{|v| '-v ' << v['volume']['host'] << ':' << v['volume']['guest'] << ' '}.join"` |
117 | } | |
118 | ||
7f77c274 SS |
119 | set_template_info() { |
120 | ||
c4498636 | 121 | templates=`cat $config_file | docker run --rm -i -a stdin -a stdout $image ruby -e \ |
7f77c274 SS |
122 | "require 'yaml'; puts YAML.load(STDIN.readlines.join)['templates']"` |
123 | ||
124 | ||
125 | arrTemplates=(${templates// / }) | |
126 | config_data=$(cat $config_file) | |
127 | ||
128 | input="hack: true" | |
129 | ||
130 | ||
131 | for template in "${arrTemplates[@]}" | |
132 | do | |
133 | [ ! -z $template ] && { | |
134 | input="$input _FILE_SEPERATOR_ $(cat $template)" | |
135 | } | |
136 | done | |
137 | ||
138 | # we always want our config file last so it takes priority | |
139 | input="$input _FILE_SEPERATOR_ $config_data" | |
140 | ||
141 | read -r -d '' env_ruby << 'RUBY' | |
142 | require 'yaml' | |
143 | ||
144 | input=STDIN.readlines.join | |
145 | env = {} | |
146 | input.split('_FILE_SEPERATOR_').each do |yml| | |
147 | yml.strip! | |
148 | begin | |
149 | env.merge!(YAML.load(yml)['env'] || {}) | |
150 | rescue => e | |
151 | puts yml | |
152 | p e | |
153 | end | |
154 | end | |
4b563ee8 | 155 | puts env.map{|k,v| "-e\n#{k}=#{v}" }.join("\n") |
7f77c274 SS |
156 | RUBY |
157 | ||
c4498636 | 158 | raw=`exec echo "$input" | docker run --rm -i -a stdin -a stdout $image ruby -e "$env_ruby"` |
4b563ee8 SS |
159 | |
160 | env=() | |
161 | while read i; do | |
162 | env[${#env[@]}]=$i | |
163 | done <<< "$raw" | |
164 | ||
165 | echo "Calculated ENV: ${env[@]}" | |
7f77c274 SS |
166 | } |
167 | ||
52388b87 SS |
168 | [ -z $docker_path ] && { |
169 | install_docker | |
170 | } | |
171 | ||
5f803fb4 SS |
172 | |
173 | [ $# -ne 2 ] && { | |
174 | usage | |
175 | } | |
176 | ||
7e738616 S |
177 | if [ ! -e $config_file ] |
178 | then | |
179 | echo "Config file was not found, ensure $config_file exists" | |
180 | exit 1 | |
181 | fi | |
182 | ||
337a89aa S |
183 | |
184 | run_stop(){ | |
185 | if [ ! -e $cidfile ] | |
186 | then | |
187 | echo "No cid found" | |
188 | exit 1 | |
189 | else | |
190 | docker stop -t 10 `cat $cidfile` | |
191 | fi | |
192 | } | |
193 | ||
194 | run_start(){ | |
195 | ||
196 | if [ ! -e $cidfile ] | |
197 | then | |
198 | echo "No cid found, creating a new container" | |
199 | ports=`cat $config_file | docker run --rm -i -a stdout -a stdin $image ruby -e \ | |
200 | "require 'yaml'; puts YAML.load(STDIN.readlines.join)['expose'].map{|p| '-p ' << p.to_s << ' '}.join"` | |
201 | ||
202 | set_template_info | |
203 | set_volumes | |
204 | ||
205 | existing=`docker ps -a | awk '{ print $1, $(NF) }' | grep "$config$" | awk '{ print $1 }'` | |
206 | if [ ! -z $existing ] | |
207 | then | |
208 | echo "Found an existing container by its name, recovering cidfile, please rerun" | |
209 | echo $existing > $cidfile | |
210 | exit 1 | |
211 | fi | |
212 | ||
213 | docker run "${env[@]}" -h "`hostname`-$config" -e DOCKER_HOST_IP=$docker_ip --name $config -t --cidfile $cidfile $ports \ | |
214 | -d $volumes $local_discourse/$config /usr/bin/runsvdir -P /etc/service | |
215 | ||
216 | exit 0 | |
217 | else | |
218 | cid=`cat $cidfile` | |
219 | ||
220 | if [ -z $cid ] | |
221 | then | |
222 | echo "Detected empty cid file, deleting, please re-run" | |
223 | rm $cidfile | |
224 | exit 1 | |
225 | fi | |
226 | ||
227 | found=`docker ps -q -a --no-trunc | grep $cid` | |
228 | if [ -z $found ] | |
229 | then | |
230 | echo "Invalid cid file, deleting, please re-run" | |
231 | rm $cidfile | |
232 | exit 1 | |
233 | fi | |
234 | ||
235 | echo "cid found, ensuring container is started" | |
236 | docker start `cat $cidfile` | |
237 | exit 0 | |
238 | fi | |
239 | ||
240 | } | |
241 | ||
680dd4ea S |
242 | run_bootstrap(){ |
243 | get_ssh_pub_key | |
88126eba | 244 | |
680dd4ea S |
245 | # Is the image available? |
246 | # If not, pull it here so the user is aware what's happening. | |
247 | docker history $image >/dev/null 2>&1 || docker pull $image | |
88126eba | 248 | |
680dd4ea | 249 | set_template_info |
93149421 | 250 | |
680dd4ea S |
251 | base_image=`cat $config_file | docker run --rm -i -a stdin -a stdout $image ruby -e \ |
252 | "require 'yaml'; puts YAML.load(STDIN.readlines.join)['base_image']"` | |
93149421 | 253 | |
680dd4ea S |
254 | update_pups=`cat $config_file | docker run --rm -i -a stdin -a stdout $image ruby -e \ |
255 | "require 'yaml'; puts YAML.load(STDIN.readlines.join)['update_pups']"` | |
b9c7b50e | 256 | |
680dd4ea S |
257 | if [[ ! X"" = X"$base_image" ]]; then |
258 | image=$base_image | |
259 | fi | |
b9c7b50e | 260 | |
680dd4ea | 261 | set_volumes |
b9c7b50e | 262 | |
680dd4ea | 263 | rm -f $cidbootstrap |
d90671f3 | 264 | |
680dd4ea S |
265 | run_command="cd /pups &&" |
266 | if [[ ! "false" = $update_pups ]]; then | |
267 | run_command="$run_command git pull &&" | |
268 | fi | |
269 | run_command="$run_command /pups/bin/pups --stdin" | |
2162f1d4 | 270 | |
680dd4ea | 271 | echo $run_command |
b9c7b50e | 272 | |
680dd4ea | 273 | env=("${env[@]}" "-e" "SSH_PUB_KEY=$ssh_pub_key") |
c4498636 | 274 | |
680dd4ea S |
275 | (exec echo "$input" | docker run "${env[@]}" -e DOCKER_HOST_IP=$docker_ip --cidfile $cidbootstrap -i -a stdin -a stdout -a stderr $volumes $image \ |
276 | /bin/bash -c "$run_command") \ | |
277 | || (docker rm `cat $cidbootstrap` && rm $cidbootstrap) | |
88126eba | 278 | |
680dd4ea | 279 | [ ! -e $cidbootstrap ] && echo "FAILED TO BOOTSTRAP" && exit 1 |
9fb5f2d3 | 280 | |
680dd4ea | 281 | sleep 5 |
2162f1d4 | 282 | |
680dd4ea S |
283 | docker commit `cat $cidbootstrap` $local_discourse/$config || echo 'FAILED TO COMMIT' |
284 | docker rm `cat $cidbootstrap` && rm $cidbootstrap | |
285 | } | |
9fb5f2d3 | 286 | |
680dd4ea S |
287 | case "$command" in |
288 | bootstrap) | |
2162f1d4 | 289 | |
680dd4ea | 290 | run_bootstrap |
2dd2e330 | 291 | echo "Successfully bootstrapped, to startup use ./launcher start $config" |
4b3aebe1 | 292 | exit 0 |
5f803fb4 | 293 | ;; |
1acce9e4 | 294 | |
5f803fb4 SS |
295 | ssh) |
296 | if [ ! -e $cidfile ] | |
297 | then | |
298 | echo "No cid found" | |
299 | exit 1 | |
300 | else | |
301 | cid="`cat $cidfile`" | |
302 | address="`docker port $cid 22`" | |
303 | split=(${address//:/ }) | |
38c09f5e | 304 | exec ssh -o StrictHostKeyChecking=no root@${split[0]} -p ${split[1]} |
5f803fb4 SS |
305 | fi |
306 | ;; | |
7e738616 | 307 | |
5f803fb4 | 308 | stop) |
337a89aa S |
309 | run_stop |
310 | exit 0 | |
5f803fb4 | 311 | ;; |
7e738616 | 312 | |
5f803fb4 | 313 | logs) |
7e738616 | 314 | |
5f803fb4 SS |
315 | if [ ! -e $cidfile ] |
316 | then | |
317 | echo "No cid found" | |
318 | exit 1 | |
319 | else | |
320 | docker logs `cat $cidfile` | |
321 | exit 0 | |
322 | fi | |
323 | ;; | |
7e738616 | 324 | |
337a89aa S |
325 | restart) |
326 | run_stop | |
327 | run_start | |
328 | exit 0 | |
329 | ;; | |
80c11be3 | 330 | |
337a89aa S |
331 | start) |
332 | run_start | |
333 | exit 0 | |
5f803fb4 | 334 | ;; |
7e738616 | 335 | |
680dd4ea S |
336 | rebuild) |
337 | if [ -e $cidfile ] | |
338 | then | |
339 | echo "Stopping old container" | |
340 | docker stop -t 10 `cat $cidfile` | |
341 | fi | |
342 | ||
343 | run_bootstrap | |
344 | ||
345 | if [ -e $cidfile ] | |
346 | then | |
347 | docker rm `cat $cidfile` && rm $cidfile | |
348 | fi | |
349 | ||
350 | run_start | |
351 | exit 0 | |
352 | ;; | |
353 | ||
7e738616 | 354 | |
5f803fb4 SS |
355 | destroy) |
356 | if [ -e $cidfile ] | |
357 | then | |
358 | echo "destroying container $cidfile" | |
359 | docker stop -t 10 `cat $cidfile` | |
360 | docker rm `cat $cidfile` && rm $cidfile | |
361 | exit 0 | |
362 | else | |
363 | echo "nothing to destroy cidfile does not exist" | |
364 | exit 1 | |
365 | fi | |
366 | ;; | |
367 | esac | |
7e738616 | 368 | |
5f803fb4 | 369 | usage |