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#cloud-config
coreos:
update:
reboot-strategy: off
etcd:
#generate a new token for each unique cluster from https://discovery.etcd.io/new
<%= @etcd_discovery %>
addr: $public_ipv4:4001
peer-addr: $public_ipv4:7001
units:
<% if @flannel %>
- name: etcd.service
command: start
- name: fleet.service
command: start
- name: flannel.service
command: start
content: |
[Unit]
After=network-online.target
Wants=network-online.target
After=etcd.service
Wants=etcd.service
Description=flannel is an etcd backed overlay network for containers
[Service]
Type=notify
ExecStartPre=-/usr/bin/mkdir -p /opt/bin
ExecStartPre=/usr/bin/wget -N -P /opt/bin http://storage.googleapis.com/k8s/flanneld
ExecStartPre=/usr/bin/chmod +x /opt/bin/flanneld
ExecStartPre=/usr/bin/etcdctl set /coreos.com/network/config '{ "Network": "<%= @flannel_network %>" }'
ExecStart=/opt/bin/flanneld -etcd-endpoints http://127.0.0.1:4001 -iface eth1
- name: docker.service
command: start
content: |
[Unit]
After=flannel.service
Wants=flannel.service
Description=Docker Application Container Engine
Documentation=http://docs.docker.io
[Service]
EnvironmentFile=/run/flannel/subnet.env
ExecStartPre=/bin/mount --make-rprivate /
ExecStart=/usr/bin/docker -d --bip=${FLANNEL_SUBNET} --mtu=${FLANNEL_MTU} -s=overlay -H fd:// $DOCKER_OPTS
[Install]
WantedBy=multi-user.target
- name: setup-network-environment.service
command: start
content: |
[Unit]
Description=Setup Network Environment
Documentation=https://github.com/kelseyhightower/setup-network-environment
Requires=network-online.target
After=network-online.target
[Service]
ExecStartPre=-/usr/bin/mkdir -p /opt/bin
ExecStartPre=/usr/bin/wget -N -P /opt/bin http://storage.googleapis.com/k8s/setup-network-environment
ExecStartPre=/usr/bin/chmod +x /opt/bin/setup-network-environment
ExecStart=/opt/bin/setup-network-environment
RemainAfterExit=yes
Type=oneshot
<% else %>
- name: etcd.service
command: start
- name: fleet.service
command: start
<% end %>
<% @applications.each do |name,app| %>
- name: factorish-<%= name %>.service
command: start
content: |
[Unit]
Description=Factorish <%= name %>
Requires=factorish-registry.service
After=factorish-registry.service
[Service]
EnvironmentFile=/etc/environment
TimeoutStartSec=0
ExecStartPre=-/usr/bin/docker kill factorish-<%= name %>
ExecStartPre=-/usr/bin/docker rm factorish-<%= name %>
<% if app.has_key?('dockerfile') && app['dockerfile'] %>
ExecStartPre=-/run/factorish/build_image <%= app['dockerfile'] %> <%= app['repository'] %> <%= name %>
<% else %>
ExecStartPre=-/run/factorish/fetch_image <%= name %> <%= app['repository'] %>
<% end %>
ExecStart=/bin/sh -c "/usr/bin/docker run --rm <%= app['docker_options'].join(' ') %> --name factorish-<%= name %> <%= app['repository']%> <%= app['command'] %>"
ExecStop=/usr/bin/docker stop factorish-<%= name %>
<% end %>
write_files:
- path: /etc/systemd/system/docker.service.d/50-insecure-registry.conf
content: |
[Service]
Environment=DOCKER_OPTS='--insecure-registry="127.0.0.1:5000"'
- path: /etc/motd
content: "Example Demo\n"
- path: /run/factorish/fetch_image
permissions: '0755'
content: |
#!/bin/bash
set -x
if [[ -z $1 || -z $2 ]]; then
echo 'Usage: fetch_service <name> <repository>'
exit 1
fi
if [[ -e /run/factorish/fetch_$1.lock ]]; then
echo -n 'waiting my turn'
while [[ -e /run/factorish/fetch_$1.lock ]]; do
sleep 5
echo -n .
done
echo .
else
echo $1 > /run/factorish/fetch_$1.lock
fi
echo Initializing service - $1
etcdctl ls /factorish/services/$1 >/dev/null 2>&1 || etcdctl mkdir /factorish/services/$1 >/dev/null 2>&1
if etcdctl mk /factorish/services/$1/fetching 1 >/dev/null 2>&1; then
if [[ -e /home/core/share/registry/$1.tgz ]]; then
echo - Loading $1 from host cache...
docker images registry | grep registry > /dev/null || \
docker load < /home/core/share/registry/$1.tgz > /dev/null 2>&1
else
echo - Pulling $2 from docker hub...
docker pull $2 > /dev/null
docker save $2 > /home/core/share/registry/$1.tgz
fi
etcdctl rm /factorish/services/$1/fetching
etcdctl mk /factorish/services/$1/cached
rm -f /run/factorish/fetch_$1.lock
exit 0
else
if ! etcdctl get /factorish/services/$1/cached; then
while etcdctl get /factorish/services/$1/fetching >/dev/null 2>&1; do
sleep 10
done
fi
echo - Loading $1 from host cache...
docker images registry | grep registry > /dev/null || \
docker load < /home/core/share/registry/$1.tgz > /dev/null 2>&1
fi
rm -f /run/factorish/fetch_$1.lock
- path: /run/factorish/build_image
permissions: '0755'
content: |
#!/bin/bash
set -x
if [[ -z $1 || -z $2 ]]; then
echo 'Usage: factorish_image <dockerfile> <repository> <name>'
exit 1
fi
if [[ -e /run/factorish/build_$3.lock ]]; then
echo -n 'waiting my turn'
while [[ -e /run/factorish/build_$3.lock ]]; do
sleep 5
echo -n .
done
echo .
else
echo $1 > /run/factorish/build_$3.lock
fi
while etcdctl get /factorish/builds/$3/building >/dev/null 2>&1; do
sleep 10
done
echo Building $2 image
echo fetching 127.0.0.1:5000/$2 if it already exists
if ! docker pull 127.0.0.1:5000/$2; then
echo not found, lets build it.
etcdctl ls /factorish/builds >/dev/null 2>&1 || etcdctl mkdir /factorish/builds/$3 >/dev/null 2>&1
if etcdctl mk /factorish/builds/$3/building 1 >/dev/null 2>&1; then
docker build -t 127.0.0.1:5000/$2 $1
docker tag -f 127.0.0.1:5000/$2 $2
docker push 127.0.0.1:5000/$2
etcdctl rm /factorish/builds/$3/building
etcdctl mk /factorish/builds/$3/built
rm -f /run/factorish/build_$3.lock
echo finished.
exit 0
fi
fi
if ! etcdctl get /factorish/builds/$3/built; then
while etcdctl get /factorish/builds/$3/building >/dev/null 2>&1; do
sleep 10
done
fi
if docker pull 127.0.0.1:5000/$2; then
docker tag -f 127.0.0.1:5000/$2 $2
echo - $2 pulled from private registry.
echo - run ./clean_registry if you expected this to rebuild.
fi
rm -f /run/factorish/build_$3.lock
- path: /etc/profile.d/functions.sh
permissions: '0755'
content: |
<% @applications.each do |name, app| %>
function run_<%= name %>() {
eval `cat /etc/environment | sed "s/^/export /"`
echo "Running factorish-<%= name %>"
docker run -d <%= app['docker_options'].join(' ') %> --name factorish-<%= name %> <%= app['repository']%> <%= app['command'] %>
}
function kill_<%= name %>() {
/usr/bin/docker kill factorish-<%= name %>
/usr/bin/docker rm factorish-<%= name %>
}
function build_<%= name %>() {
docker build -t <%= app['repository'] %> <%=app['dockerfile'] %>
}
function log_<%= name %>() {
docker logs -f factorish-<%= name %>
}
function journal_<%= name %>() {
journalctl -f -u factorish-<%= name %>
}
function push_<%= name %>() {
docker push -f <%= app['repository'] %> 127.0.0.1:5000/<%= app['repository'] %>
}
function <%= name %>() {
/usr/bin/docker exec -it factorish-<%= name %> bash
}
<% end %>
function cleanup() {
etcdctl rm --recursive /services
}