Ansible Rabbitmq support

Adds initial support for Rabbitmq in Ansible using the CONFIG_EXTERNAL methods.

Additionally, this refactors some of the Rabbitmq config script to allow for
reuse by CONFIG_EXTERNAL.

Partially Implements: blueprint ansible-service

Change-Id: I1765548f7e4f1258eb8a49e2a23242955f52655d

8 files changed, 102 insertions, 61 deletions

diff --git a/docker/centos/binary/rabbitmq/Dockerfile b/docker/centos/binary/rabbitmq/Dockerfile
index f42bc8307..ba2d748b5 100644
--- a/docker/centos/binary/rabbitmq/Dockerfile
+++ b/docker/centos/binary/rabbitmq/Dockerfile
@@ -8,7 +8,7 @@ RUN yum -y install \
    /usr/lib/rabbitmq/bin/rabbitmq-plugins enable rabbitmq_management
 
 COPY rabbitmq.config rabbitmq-env.conf /etc/rabbitmq/
-COPY config-rabbit.sh /opt/kolla/config-rabbit.sh
+COPY config-rabbit.sh config-external.sh config-internal.sh /opt/kolla/
 COPY start.sh /start.sh
 
 CMD ["/start.sh"]
diff --git a/docker/centos/binary/rabbitmq/config-external.sh b/docker/centos/binary/rabbitmq/config-external.sh
new file mode 120000
index 000000000..e02e664c8
--- /dev/null
+++ b/docker/centos/binary/rabbitmq/config-external.sh
@@ -0,0 +1 @@
+../../../common/rabbitmq/config-external.sh
\ No newline at end of file
diff --git a/docker/centos/binary/rabbitmq/config-internal.sh b/docker/centos/binary/rabbitmq/config-internal.sh
new file mode 120000
index 000000000..73a13c772
--- /dev/null
+++ b/docker/centos/binary/rabbitmq/config-internal.sh
@@ -0,0 +1 @@
+../../../common/rabbitmq/config-internal.sh
\ No newline at end of file
diff --git a/docker/centos/binary/rabbitmq/config-rabbit.sh b/docker/centos/binary/rabbitmq/config-rabbit.sh
index 2be0f5b9c..6feee2aba 100644..120000
--- a/docker/centos/binary/rabbitmq/config-rabbit.sh
+++ b/docker/centos/binary/rabbitmq/config-rabbit.sh
@@ -1,57 +1 @@
-#!/bin/bash
-
-. /opt/kolla/kolla-common.sh
-
-check_required_vars RABBITMQ_PASS RABBITMQ_USER
-
-RABBITMQ_CLUSTER_CONFIGURATION=""
-
-function configure_files {
-
-    sed -i '
-        s|@RABBITMQ_USER@|'"$RABBITMQ_USER"'|g
-        s|@RABBITMQ_PASS@|'"$RABBITMQ_PASS"'|g
-        s|@RABBITMQ_CLUSTER_CONFIGURATION@|'"$RABBITMQ_CLUSTER_CONFIGURATION"'|g
-    ' /etc/rabbitmq/rabbitmq.config
-
-    sed -i '
-        s|@RABBITMQ_LOG_BASE@|'"$RABBITMQ_LOG_BASE"'|g
-    ' /etc/rabbitmq/rabbitmq-env.conf
-}
-
-function configure_cluster {
-    check_required_vars RABBITMQ_CLUSTER_COOKIE RABBITMQ_CLUSTER_NODES
-
-    echo "${RABBITMQ_CLUSTER_COOKIE}" > /var/lib/rabbitmq/.erlang.cookie
-    chown rabbitmq /var/lib/rabbitmq/.erlang.cookie
-    chmod 700 /var/lib/rabbitmq/.erlang.cookie
-
-    HOSTNAME=""
-    IP_ADDRESS=""
-    DELIMETER=""
-
-    for node in ${RABBITMQ_CLUSTER_NODES}; do
-        HOSTNAME=`echo ${node} | cut -d'@' -f1`
-        IP_ADDRESS=`echo ${node} | cut -d'@' -f2`
-        CLUSTER_NODES="${CLUSTER_NODES}${DELIMETER}rabbit@${HOSTNAME}"
-        echo "${IP_ADDRESS} ${HOSTNAME}" >> /etc/hosts
-        DELIMETER=","
-    done
-    RABBITMQ_CLUSTER_CONFIGURATION="{cluster_nodes, {[$CLUSTER_NODES], disc}},"
-}
-
-function configure_rabbit {
-    if [ "$RABBITMQ_CLUSTER_NODES" ] && [ "$RABBITMQ_CLUSTER_COOKIE" ]; then
-        configure_cluster
-    elif [ "$RABBITMQ_SERVICE_HOST" ]; then
-        # work around:
-        # https://bugs.launchpad.net/ubuntu/+source/rabbitmq-server/+bug/653405
-        echo "${RABBITMQ_SERVICE_HOST} `/usr/bin/hostname -s`" > /etc/hosts
-    else
-        echo "You need RABBITMQ_SERVICE_HOST or RABBITMQ_CLUSTER_NODES & " \
-            " RABBITMQ_CLUSTER_COOKIES variables"
-        exit 1
-    fi
-
-    configure_files
-}
+../../../common/rabbitmq/config-rabbit.sh
\ No newline at end of file
diff --git a/docker/common/rabbitmq/config-external.sh b/docker/common/rabbitmq/config-external.sh
new file mode 100644
index 000000000..40abd6156
--- /dev/null
+++ b/docker/common/rabbitmq/config-external.sh
@@ -0,0 +1,14 @@
+#!/bin/bash
+
+# Cluster configuration
+if [[ -f /opt/kolla/rabbitmq/rabbitmq.config ]]; then
+    cp -af /opt/kolla/rabbitmq/rabbitmq.config /etc/rabbitmq/rabbitmq.config
+    chown rabbitmq: /etc/rabbitmq/rabbitmq.config
+    chmod 0600 /etc/rabbitmq/rabbitmq.config
+fi
+
+if [[ -f /opt/kolla/rabbitmq/rabbitmq-env.conf ]]; then
+    cp -af /opt/kolla/rabbitmq/rabbitmq-env.conf /etc/rabbitmq/rabbitmq-env.conf
+    chown rabbitmq: /etc/rabbitmq/rabbitmq-env.conf
+    chmod 0600 /etc/rabbitmq/rabbitmq-env.conf
+fi
diff --git a/docker/common/rabbitmq/config-internal.sh b/docker/common/rabbitmq/config-internal.sh
new file mode 100755
index 000000000..8fc77f421
--- /dev/null
+++ b/docker/common/rabbitmq/config-internal.sh
@@ -0,0 +1,10 @@
+#!/bin/bash
+
+. /opt/kolla/kolla-common.sh
+. /opt/kolla/config-rabbit.sh
+
+check_required_vars RABBITMQ_PASS RABBITMQ_USER
+
+configure_rabbit
+
+exec /usr/sbin/rabbitmq-server
diff --git a/docker/common/rabbitmq/config-rabbit.sh b/docker/common/rabbitmq/config-rabbit.sh
new file mode 100644
index 000000000..750b253a4
--- /dev/null
+++ b/docker/common/rabbitmq/config-rabbit.sh
@@ -0,0 +1,55 @@
+#!/bin/bash
+
+RABBITMQ_CLUSTER_CONFIGURATION=""
+
+function configure_files {
+    sed -i '
+        s|@RABBITMQ_USER@|'"$RABBITMQ_USER"'|g
+        s|@RABBITMQ_PASS@|'"$RABBITMQ_PASS"'|g
+        s|@RABBITMQ_CLUSTER_CONFIGURATION@|'"$RABBITMQ_CLUSTER_CONFIGURATION"'|g
+    ' /etc/rabbitmq/rabbitmq.config
+
+    sed -i '
+        s|@RABBITMQ_LOG_BASE@|'"$RABBITMQ_LOG_BASE"'|g
+    ' /etc/rabbitmq/rabbitmq-env.conf
+}
+
+function set_rabbitmq_cookie {
+    echo "${RABBITMQ_CLUSTER_COOKIE}" > /var/lib/rabbitmq/.erlang.cookie
+    chown rabbitmq: /var/lib/rabbitmq/.erlang.cookie
+    chmod 400 /var/lib/rabbitmq/.erlang.cookie
+}
+
+function configure_cluster {
+    check_required_vars RABBITMQ_CLUSTER_COOKIE RABBITMQ_CLUSTER_NODES
+    set_rabbitmq_cookie
+
+    HOSTNAME=""
+    IP_ADDRESS=""
+    DELIMETER=""
+
+    for node in ${RABBITMQ_CLUSTER_NODES}; do
+        HOSTNAME=`echo ${node} | cut -d'@' -f1`
+        IP_ADDRESS=`echo ${node} | cut -d'@' -f2`
+        CLUSTER_NODES="${CLUSTER_NODES}${DELIMETER}rabbit@${HOSTNAME}"
+        echo "${IP_ADDRESS} ${HOSTNAME}" >> /etc/hosts
+        DELIMETER=","
+    done
+    RABBITMQ_CLUSTER_CONFIGURATION="{cluster_nodes, {[$CLUSTER_NODES], disc}},"
+}
+
+function configure_rabbit {
+    if [ "$RABBITMQ_CLUSTER_NODES" ] && [ "$RABBITMQ_CLUSTER_COOKIE" ]; then
+        configure_cluster
+    elif [ "$RABBITMQ_SERVICE_HOST" ]; then
+        # work around:
+        # https://bugs.launchpad.net/ubuntu/+source/rabbitmq-server/+bug/653405
+        echo "${RABBITMQ_SERVICE_HOST} `/usr/bin/hostname -s`" > /etc/hosts
+    else
+        echo "You need RABBITMQ_SERVICE_HOST or RABBITMQ_CLUSTER_NODES & " \
+            " RABBITMQ_CLUSTER_COOKIES variables"
+        exit 1
+    fi
+
+    configure_files
+}
diff --git a/docker/common/rabbitmq/start.sh b/docker/common/rabbitmq/start.sh
index 4e76e382f..8f7fef330 100755
--- a/docker/common/rabbitmq/start.sh
+++ b/docker/common/rabbitmq/start.sh
@@ -1,7 +1,23 @@
 #!/bin/bash
 
-. /opt/kolla/config-rabbit.sh
+set -o errexit
 
-configure_rabbit
+CMD="/usr/sbin/rabbitmq-server"
+ARGS=""
 
-exec /usr/sbin/rabbitmq-server
+# loading common functions
+source /opt/kolla/kolla-common.sh
+
+# config-internal script exec out of this function, it does not return here
+set_configs
+
+# loading functions
+source /opt/kolla/config-rabbit.sh
+
+# This catches all cases of the BOOTSTRAP variable being set, including empty
+if [[ "${!KOLLA_BOOTSTRAP[@]}" ]]; then
+    set_rabbitmq_cookie
+    exit 0
+fi
+
+$CMD $ARGS