Remove stale Apache2 service pids when a POD starts.

Stale Apache2 pids will prevent Apache2 from starting and will leave
the POD in a crashed state.

Note: the pid file is somewhat confusingly called
/var/run/httpd/httpd.pid and /var/run/apache2 is just a symlink to
/var/run/httpd.

This is loosely based off the in-review upstream commit at
https://review.openstack.org/#/c/619747

Change-Id: Ifec8b58e4789edb1f858ef1a9d720045d8768701
Story: 2003909
Task: 27632
Signed-off-by: Chris Friesen <chris.friesen@windriver.com>

openstack/openstack-helm/centos/build_srpm.data

@@ -5,4 +5,4 @@ TAR="$TAR_NAME-$SHA.tar.gz"
 
 COPY_LIST="${CGCS_BASE}/downloads/$TAR $PKG_BASE/files/* "
 
-TIS_PATCH_VER=4
+TIS_PATCH_VER=5

openstack/openstack-helm/centos/openstack-helm.spec

@@ -19,6 +19,7 @@ BuildArch:     noarch
 Patch01: 0001-ceilometer-chart-updates.patch
 Patch02: 0002-Add-Aodh-Chart.patch
 Patch03: 0003-Add-Panko-Chart.patch
+Patch04: Remove-stale-Apache2-service-pids-when-a-POD-starts.patch
 
 BuildRequires: helm
 BuildRequires: openstack-helm-infra
@@ -32,6 +33,7 @@ Openstack Helm charts
 %patch01 -p1
 %patch02 -p1
 %patch03 -p1
+%patch04 -p1
 
 %build
 # initialize helm and stage the toolkit

openstack/openstack-helm/files/Remove-stale-Apache2-service-pids-when-a-POD-starts.patch

@@ -0,0 +1,95 @@
+From 44b9b086f22a561cec91519d03750c3e501d5739 Mon Sep 17 00:00:00 2001
+From: Chris Friesen <chris.friesen@windriver.com>
+Date: Wed, 28 Nov 2018 01:33:39 -0500
+Subject: [PATCH] Remove stale Apache2 service pids when a POD starts.
+
+Stale Apache2 pids will prevent Apache2 from starting and will leave
+the POD in a crashed state.
+
+Note: the pid file is somewhat confusingly called
+/var/run/httpd/httpd.pid and /var/run/apache2 is just a symlink to
+/var/run/httpd.
+
+This is loosely based off the in-review upstream commit at
+https://review.openstack.org/#/c/619747
+---
+ aodh/templates/bin/_aodh-api.sh.tpl             | 3 +++
+ ceilometer/templates/bin/_ceilometer-api.sh.tpl | 3 +++
+ keystone/templates/bin/_keystone-api.sh.tpl     | 3 +++
+ nova/templates/bin/_nova-placement-api.sh.tpl   | 3 +++
+ panko/templates/bin/_panko-api.sh.tpl           | 3 +++
+ 5 files changed, 15 insertions(+)
+
+diff --git a/aodh/templates/bin/_aodh-api.sh.tpl b/aodh/templates/bin/_aodh-api.sh.tpl
+index 708b327..dfc7abc 100644
+--- a/aodh/templates/bin/_aodh-api.sh.tpl
++++ b/aodh/templates/bin/_aodh-api.sh.tpl
+@@ -28,6 +28,9 @@ function start () {
+     source /etc/apache2/envvars
+   fi
+ 
++  # Get rid of stale pid file if present.
++  rm -f /var/run/apache2/*.pid
++
+   # Start Apache2
+   exec apache2 -DFOREGROUND
+ }
+diff --git a/ceilometer/templates/bin/_ceilometer-api.sh.tpl b/ceilometer/templates/bin/_ceilometer-api.sh.tpl
+index cdb02f7..0950f03 100644
+--- a/ceilometer/templates/bin/_ceilometer-api.sh.tpl
++++ b/ceilometer/templates/bin/_ceilometer-api.sh.tpl
+@@ -25,6 +25,9 @@ function start () {
+     source /etc/apache2/envvars
+   fi
+ 
++  # Get rid of stale pid file if present.
++  rm -f /var/run/apache2/*.pid
++
+   # Start Apache2
+   exec apache2 -DFOREGROUND
+ }
+diff --git a/keystone/templates/bin/_keystone-api.sh.tpl b/keystone/templates/bin/_keystone-api.sh.tpl
+index 217d942..a5950a4 100644
+--- a/keystone/templates/bin/_keystone-api.sh.tpl
++++ b/keystone/templates/bin/_keystone-api.sh.tpl
+@@ -31,6 +31,9 @@ function start () {
+      source /etc/apache2/envvars
+   fi
+ 
++  # Get rid of stale pid file if present.
++  rm -f /var/run/apache2/*.pid
++
+   # Start Apache2
+   exec apache2 -DFOREGROUND
+ }
+diff --git a/nova/templates/bin/_nova-placement-api.sh.tpl b/nova/templates/bin/_nova-placement-api.sh.tpl
+index f9c8d7c..a7d753e 100644
+--- a/nova/templates/bin/_nova-placement-api.sh.tpl
++++ b/nova/templates/bin/_nova-placement-api.sh.tpl
+@@ -28,6 +28,9 @@ function start () {
+      source /etc/apache2/envvars
+   fi
+ 
++  # Get rid of stale pid file if present.
++  rm -f /var/run/apache2/*.pid
++
+   # Start Apache2
+   exec apache2 -DFOREGROUND
+ }
+diff --git a/panko/templates/bin/_panko-api.sh.tpl b/panko/templates/bin/_panko-api.sh.tpl
+index bd08a43..c4ffc3f 100755
+--- a/panko/templates/bin/_panko-api.sh.tpl
++++ b/panko/templates/bin/_panko-api.sh.tpl
+@@ -28,6 +28,9 @@ function start () {
+      source /etc/apache2/envvars
+   fi
+ 
++  # Get rid of stale pid file if present.
++  rm -f /var/run/apache2/*.pid
++
+   # Start Apache2
+   exec apache2 -DFOREGROUND
+ }
+-- 
+1.8.3.1
+