Merge branch 'stable' of https://github.com/saqibahmed515/docker-keepalived into saqibahmed515-stable

README.md

@@ -104,6 +104,8 @@ See how to [set your own environment variables](#set-your-own-environment-variab
 
 - **KEEPALIVED_COMMAND_LINE_ARGUMENTS** Keepalived command line arguments; Defaults to `--log-detail --dump-conf`
 
+- **KEEPALIVED_STATE** The starting state of keepalived; it can either be MASTER or BACKUP.
+
 ### Set your own environment variables
 
 #### Use command line argument

image/environment/default.yaml

@@ -18,3 +18,5 @@ KEEPALIVED_VIRTUAL_IPS:
 KEEPALIVED_NOTIFY: /container/service/keepalived/assets/notify.sh
 
 KEEPALIVED_ROUTER_ID: 51
+
+KEEPALIVED_STATE: BACKUP

image/service/keepalived/assets/keepalived.conf

@@ -5,7 +5,7 @@ global_defs {
 vrrp_instance VI_1 {
   interface {{ KEEPALIVED_INTERFACE }}
 
-  state BACKUP
+  state {{ KEEPALIVED_STATE }}
   virtual_router_id {{ KEEPALIVED_ROUTER_ID }}
   priority {{ KEEPALIVED_PRIORITY }}
   nopreempt

image/service/keepalived/startup.sh

@@ -11,6 +11,7 @@ if [ ! -e "$FIRST_START_DONE" ]; then
   #
   # bootstrap config
   #
+  sed -i "s|{{ KEEPALIVED_STATE }}|$KEEPALIVED_STATE|g" ${CONTAINER_SERVICE_DIR}/keepalived/assets/keepalived.conf
   sed -i "s|{{ KEEPALIVED_ROUTER_ID }}|$KEEPALIVED_ROUTER_ID|g" ${CONTAINER_SERVICE_DIR}/keepalived/assets/keepalived.conf
   sed -i "s|{{ KEEPALIVED_INTERFACE }}|$KEEPALIVED_INTERFACE|g" ${CONTAINER_SERVICE_DIR}/keepalived/assets/keepalived.conf
   sed -i "s|{{ KEEPALIVED_PRIORITY }}|$KEEPALIVED_PRIORITY|g" ${CONTAINER_SERVICE_DIR}/keepalived/assets/keepalived.conf