The wait_for function needs to be added into all the images

This affects both fedora and the centos base images.
Wait_for will be intregrated into kolla-common.

Co-authored by: Charles Crouch <charcrou@cisco.com>

Change-Id: Ide2304b787d4c3bf6fb3949f09e2cf1f450c2173

docker/base/kolla-common.sh

@@ -19,6 +19,41 @@ check_required_vars() {
     done
 }
 
+wait_for() {
+    local loops=${1:-""}
+    local sleeptime=${2:-""}
+    local fail_match_output=${fail_match_output:-""}
+    local successful_match_output=${successful_match_output:-""}
+    shift 2 || true
+    local command="$@"
+
+    if [ -z "$loops" -o -z "$sleeptime" -o -z "$command" ]; then
+        echo "Incorrect call of wait_for. Refer to docs/wait-for.md for help"
+    fi
+
+    local i=0
+    while [ $i -lt $loops ]; do
+        i=$((i + 1))
+        local status=0
+        local output=$(eval $command 2>&1) || status=$?
+        if [[ -n "$successful_match_output" ]] \
+            && [[ $output =~ $successful_match_output ]]; then
+            break
+        elif [[ -n "$fail_match_output" ]] \
+            && [[ $output =~ $fail_match_output ]]; then
+            echo "Command output matched '$fail_match_output'."
+            continue
+        elif [[ -z "$successful_match_output" ]] && [[ $status -eq 0 ]]; then
+            break
+        fi
+        sleep $sleeptime
+    done
+    local seconds=$((loops * sleeptime))
+    printf 'Timing out after %d seconds:\ncommand=%s\nOUTPUT=%s\n' \
+        "$seconds" "$command" "$output"
+    exit 1
+}
+
 # Exit unless we receive a successful response from corresponding OpenStack
 # service.
 check_for_os_service() {

docker/centos-rdo-base/Dockerfile

@@ -95,3 +95,4 @@ RUN yum install -y \
 RUN mkdir -p /opt/kolla
 ADD service_hosts.sh /opt/kolla/service_hosts.sh
 ADD kolla-common.sh /opt/kolla/kolla-common.sh
+ADD wait_for /opt/kolla/wait_for

docker/fedora-rdo-base/Dockerfile

@@ -94,4 +94,3 @@ RUN yum install -y \
 RUN mkdir -p /opt/kolla
 ADD service_hosts.sh /opt/kolla/service_hosts.sh
 ADD kolla-common.sh /opt/kolla/kolla-common.sh
-

docker/fedora-rdo-base/wait_for

-#!/bin/bash
-# Based on
-# https://raw.githubusercontent.com/openstack/tripleo-incubator/6931c1fc7ed98ce36998c5b82750a880b0365445/scripts/wait_for
-#
-# Copyright 2013 Red Hat
-# All Rights Reserved.
-#
-# Licensed under the Apache License, Version 2.0 (the "License"); you may
-# not use this file except in compliance with the License. You may obtain
-# a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-# License for the specific language governing permissions and limitations
-# under the License.
-
-set -e  # exit on the first non-zero status
-set -u  # exit on unset variables
-#set -x  # setting this actually breaks the scripts function
-
-SCRIPT_NAME=$(basename $0)
-
-
-function show_options() {
-    echo "Usage: $SCRIPT_NAME LOOPS_NUMBER SLEEP_TIME ARGS"
-    echo
-    echo "ARGS are read and concatenated together into a single command."
-    echo "Execute the command in a loop until it succeeds or the number"
-    echo "of attempts exceeds LOOPS_NUMBER value. After each failure"
-    echo "pause for SLEEP_TIME seconds."
-    echo
-    echo "An optional FAIL_MATCH_OUTPUT variable may also be set to control "
-    echo "if the loop exits early if the commands stdout/stderr matches the "
-    echo "supplied regex string."
-    echo
-    echo "Examples:"
-    echo "    wait_for 30 10 ping -c 1 192.0.2.2"
-    echo "    wait_for 10 1 ls file_we_are_waiting_for"
-    echo "    wait_for 10 3 date \| grep 8"
-    echo "    FAIL_MATCH_OUTPUT=CREATE_FAILED wait_for 30 10 heat stack-show undercloud"
-    echo "    SUCCESSFUL_MATCH_OUTPUT=CREATE_COMPLETE wait_for 30 10 heat stack-show undercloud"
-    exit 1
-}
-
-
-LOOPS=${1:-""}
-SLEEPTIME=${2:-""}
-FAIL_MATCH_OUTPUT=${FAIL_MATCH_OUTPUT:-""}
-SUCCESSFUL_MATCH_OUTPUT=${SUCCESSFUL_MATCH_OUTPUT:-""}
-shift 2 || true
-COMMAND="$@"
-
-if [ -z "$LOOPS" -o -z "$SLEEPTIME" -o -z "$COMMAND" ]; then
-    show_options
-fi
-
-
-i=0
-while [ $i -lt $LOOPS ]; do
-    i=$((i + 1))
-    STATUS=0
-    OUTPUT=$(eval $COMMAND 2>&1) || STATUS=$?
-    if [[ -n "$SUCCESSFUL_MATCH_OUTPUT" ]] \
-        && [[ $OUTPUT =~ $SUCCESSFUL_MATCH_OUTPUT ]]; then
-        exit 0
-    elif [[ -n "$FAIL_MATCH_OUTPUT" ]] \
-        && [[ $OUTPUT =~ $FAIL_MATCH_OUTPUT ]]; then
-        echo "Command output matched '$FAIL_MATCH_OUTPUT'. Exiting..."
-        exit 1
-    elif [[ -z "$SUCCESSFUL_MATCH_OUTPUT" ]] && [[ $STATUS -eq 0 ]]; then
-        # The command successfully completed and we aren't testing against
-        # it's output so we have finished waiting.
-        exit 0
-    fi
-
-    sleep $SLEEPTIME
-done
-SECONDS=$((LOOPS * SLEEPTIME))
-printf 'Timing out after %d seconds:\nCOMMAND=%s\nOUTPUT=%s\n' \
-    "$SECONDS" "$COMMAND" "$OUTPUT"
-exit 1
-

docker/glance/glance-api/start.sh

@@ -11,10 +11,10 @@ check_required_vars KEYSTONE_ADMIN_TOKEN KEYSTONE_ADMIN_SERVICE_HOST \
                     ADMIN_TENANT_NAME GLANCE_API_SERVICE_HOST \
                     PUBLIC_IP
 
-/opt/kolla/wait_for 30 1 keystone \
-                    --os-auth-url=http://${KEYSTONE_PUBLIC_SERVICE_HOST}:35357/v2.0 \
-                    --os-username=admin --os-tenant-name=${ADMIN_TENANT_NAME} \
-                    --os-password=${KEYSTONE_ADMIN_PASSWORD} endpoint-list
+wait_for 30 1 keystone \
+    --os-auth-url=http://${KEYSTONE_PUBLIC_SERVICE_HOST}:35357/v2.0 \
+    --os-username=admin --os-tenant-name=${ADMIN_TENANT_NAME} \
+    --os-password=${KEYSTONE_ADMIN_PASSWORD} endpoint-list
 check_for_keystone
 
 export SERVICE_TOKEN="${KEYSTONE_ADMIN_TOKEN}"

docs/wait-for.md

+# Wait-for function
+
+The usage of the wait_for function looks like the following
+    $ SCRIPT_NAME LOOPS_NUMBER SLEEP_TIME ARGS
+
+The ARGS are read and concatenated together into a single command
+and the command is executed in a loop until it succeeds or reaches
+the max number of attempts (LOOPS_NUMBER).
+
+An optional FAIL_MATCH_OUTPUT variable may also be set to control
+if the loop exits early if the commands stdout/stderr matches the
+supplied regex string.
+Examples:
+    $ wait_for 30 10 ping -c 1 192.0.2.2
+    $ wait_for 10 1 ls file_we_are_waiting_for
+    $ wait_for 10 3 date \| grep 8
+    $ FAIL_MATCH_OUTPUT=CREATE_FAILED wait_for 30 10 heat stack-show undercloud
+    $ SUCCESSFUL_MATCH_OUTPUT=CREATE_COMPLETE wait_for 30 10 heat stack-show undercloud