Merge branch 'feature-init' into release-0.1.0

CHANGELOG.md

@@ -0,0 +1,4 @@
+# Changelog
+
+## 0.1.0
+  - Initial release

Makefile

@@ -0,0 +1,20 @@
+NAME = osixia/keepalived
+VERSION = 0.1.0
+
+.PHONY: all build test tag_latest release
+
+all: build
+
+build:
+	docker build -t $(NAME):$(VERSION) --rm image
+
+test:
+	env NAME=$(NAME) VERSION=$(VERSION) bats test/test.bats
+
+tag_latest:
+	docker tag -f $(NAME):$(VERSION) $(NAME):latest
+
+release: build test tag_latest
+	@if ! docker images $(NAME) | awk '{ print $$2 }' | grep -q -F $(VERSION); then echo "$(NAME) version $(VERSION) is not yet built. Please run 'make build'"; false; fi
+	docker push $(NAME)
+	@echo "*** Don't forget to run 'twgit release/hotfix finish' :)"

README.md

@@ -1,2 +1,10 @@
-# docker-keepalived
+# osixia/keepalived
-A docker image to run Keepalived
+
+A docker image to run Keepalived.
+> [keepalived.org](http://keepalived.org/)
+
+## Quick start
+
+This image need to be run with : --privileged --net=host
+
+    docker run --privileged --net=host -d osixia/keepalived

image/Dockerfile

@@ -0,0 +1,35 @@
+FROM osixia/baseimage:0.10.4
+MAINTAINER Bertrand Gouny <bertrand.gouny@osixia.net>
+
+# Keepalived version
+ENV KEEPALIVED_VERSION 1.2.17
+
+# Use baseimage-docker's init system.
+CMD ["/sbin/my_init"]
+
+# Install Keepalived
+RUN apt-get -y update \
+    && LC_ALL=C DEBIAN_FRONTEND=noninteractive apt-get install -y \
+    make gcc libssl-dev \
+    && curl -o keepalived.tar.gz -SL http://keepalived.org/software/keepalived-${KEEPALIVED_VERSION}.tar.gz \
+    && mkdir -p /osixia/keepalived-sources \
+    && tar -xzf keepalived.tar.gz --strip 1 -C /osixia/keepalived-sources \
+    && cd osixia/keepalived-sources \
+    && ./configure --with-kernel-dir=/lib/modules/$(uname -r)/build \
+    && make && make install \
+    && cd - && mkdir -p /etc/keepalived \
+    && apt-get remove -y --purge --auto-remove make gcc libssl-dev
+
+# Add Keepalived assets
+ADD service/keepalived/assets /osixia/keepalived
+
+# Clean all
+RUN rm keepalived.tar.gz \
+  && apt-get clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
+
+# Add default env variables
+ADD env.yml /etc/env.yml
+
+# Add Keepalived container start config & daemon
+ADD service/keepalived/container-start.sh /etc/my_init.d/keepalived
+ADD service/keepalived/daemon.sh /etc/service/keepalived/run

image/env.yml

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+KEEPALIVED_INTERFACE: p4p1
+KEEPALIVED_PASSWORD: d0cker
+
+# for electing MASTER, highest priority wins.
+# to be MASTER, make 50 more than other machines
+KEEPALIVED_PRIORITY: 150
+
+KEEPALIVED_UNICAST_PEERS:
+  - 192.168.1.10
+
+KEEPALIVED_VIRTUAL_IPS:
+  - 192.168.1.231

image/service/keepalived/assets/README.md

@@ -0,0 +1 @@
+Add your custom keepalived.conf file here or mount one at docker run to /etc/keepalived/keepalived.conf

image/service/keepalived/assets/keepalived.conf

@@ -0,0 +1,25 @@
+vrrp_instance vip-1 {
+  interface {{ keepalived_interface }}
+
+  track_interface {
+    {{ keepalived_interface }}
+  }
+
+  state MASTER
+  virtual_router_id 51
+  priority {{ keepalived_priority }}
+  nopreempt
+
+  unicast_peer {
+    {{ keepalived_unicast_peers }}
+  }
+
+  virtual_ipaddress {
+    {{ keepalived_virtual_ips }}
+  }
+
+  authentication {
+    auth_type PASS
+    auth_pass {{ keepalived_password }}
+  }
+}

image/service/keepalived/container-start.sh

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+#!/bin/bash -e
+
+FIRST_START_DONE="/etc/docker-keepalived-first-start-done"
+
+# container first start
+if [ ! -e "$FIRST_START_DONE" ]; then
+
+  # config folder is empty use bootstrap config if available
+  if [ ! -e /etc/keepalived/keepalived.conf ]; then
+    echo "No keepalived.conf provided using image default one"
+    if [ ! -e /osixia/keepalived/keepalived.conf ]; then
+      echo "Error: No default keepalived.conf found in /osixia/keepalived/keepalived.conf"
+      exit 1
+    else
+
+      ln -s /osixia/keepalived/keepalived.conf /etc/keepalived/keepalived.conf
+
+      #
+      # bootstrap config
+      #
+      sed -i "s|{{ keepalived_interface }}|$KEEPALIVED_INTERFACE|g" /etc/keepalived/keepalived.conf
+      sed -i "s|{{ keepalived_priority }}|$KEEPALIVED_PRIORITY|g" /etc/keepalived/keepalived.conf
+      sed -i "s|{{ keepalived_password }}|$KEEPALIVED_PASSWORD|g" /etc/keepalived/keepalived.conf
+
+      # unicast peers
+      KEEPALIVED_UNICAST_PEERS=($KEEPALIVED_UNICAST_PEERS)
+      for peer in "${KEEPALIVED_UNICAST_PEERS[@]}"
+      do
+        # it's just a peer
+        # stored in a variable
+        if [ -n "${!peer}" ]; then
+          sed -i "s|{{ keepalived_unicast_peers }}|${!peer}\n    {{ keepalived_unicast_peers }}|g" /etc/keepalived/keepalived.conf
+        # directly
+        else
+          sed -i "s|{{ keepalived_unicast_peers }}|${peer}\n    {{ keepalived_unicast_peers }}|g" /etc/keepalived/keepalived.conf
+        fi
+      done
+      sed -i "/{{ keepalived_unicast_peers }}/d" /etc/keepalived/keepalived.conf
+
+      # virtual ips
+      KEEPALIVED_VIRTUAL_IPS=($KEEPALIVED_VIRTUAL_IPS)
+      for vip in "${KEEPALIVED_VIRTUAL_IPS[@]}"
+      do
+        # it's just a peer
+        # stored in a variable
+        if [ -n "${!vip}" ]; then
+          sed -i "s|{{ keepalived_virtual_ips }}|${!vip}\n    {{ keepalived_virtual_ips }}|g" /etc/keepalived/keepalived.conf
+        # directly
+        else
+          sed -i "s|{{ keepalived_virtual_ips }}|${vip}\n    {{ keepalived_virtual_ips }}|g" /etc/keepalived/keepalived.conf
+        fi
+      done
+      sed -i "/{{ keepalived_virtual_ips }}/d" /etc/keepalived/keepalived.conf
+    fi
+
+  fi
+
+  touch $FIRST_START_DONE
+fi
+
+exit 0

image/service/keepalived/daemon.sh

@@ -0,0 +1,2 @@
+#!/bin/bash -e
+exec /usr/local/sbin/keepalived -f /etc/keepalived/keepalived.conf --dont-fork --log-console -D -d

test/test.bats

@@ -0,0 +1,9 @@
+#!/usr/bin/env bats
+load test_helper
+
+@test "image build" {
+
+  run build_image
+  [ "$status" -eq 0 ]
+
+}

test/test_helper.bash

@@ -0,0 +1,101 @@
+setup() {
+  IMAGE_NAME="$NAME:$VERSION"
+}
+
+# function relative to the current container / image  
+build_image() {
+  #disable outputs
+  docker build -t $IMAGE_NAME $BATS_TEST_DIRNAME/../image &> /dev/null
+}
+
+run_image() {
+  CONTAINER_ID=$(docker run $@ -d $IMAGE_NAME)
+  CONTAINER_IP=$(get_container_ip_by_cid $CONTAINER_ID)
+}
+
+start_container() {
+  start_containers_by_cid $CONTAINER_ID
+}
+
+stop_container() {
+  stop_containers_by_cid $CONTAINER_ID
+}
+
+remove_container() {
+ remove_containers_by_cid $CONTAINER_ID
+}
+
+clear_container() {
+  stop_containers_by_cid $CONTAINER_ID
+  remove_containers_by_cid $CONTAINER_ID
+}
+
+is_service_running() {
+  is_service_running_by_cid $CONTAINER_ID $1
+}
+
+wait_service() {
+  wait_service_by_cid $CONTAINER_ID $@
+}
+
+
+# generic functions 
+get_container_ip_by_cid() {
+  local IP=$(docker inspect -f "{{ .NetworkSettings.IPAddress }}" $1)
+  echo "$IP"
+}
+
+start_containers_by_cid() {
+  for cid in "$@"
+  do
+    #disable outputs
+    docker start $cid &> /dev/null
+  done 
+}
+
+stop_containers_by_cid() {
+  for cid in "$@"
+  do
+    #disable outputs
+    docker stop $cid &> /dev/null
+  done 
+}
+
+remove_containers_by_cid() {
+  for cid in "$@"
+  do
+    #disable outputs
+    docker rm $cid &> /dev/null
+  done 
+}
+
+clear_containers_by_cid() {
+  stop_containers_by_cid $@
+  remove_containers_by_cid $@
+}
+
+is_service_running_by_cid() {
+  docker exec $1 ps cax | grep $2  > /dev/null
+}
+
+wait_service_by_cid() {
+
+  cid=$1
+
+  # first wait image init end
+  while ! is_service_running_by_cid $cid syslog-ng
+  do
+    sleep 1
+  done
+
+  for service in "${@:2}"
+  do
+    # wait service
+    while ! is_service_running_by_cid $cid $service
+    do
+      sleep 1
+    done
+  done
+
+  sleep 5
+}