From 36ecf1707a18a1411e2057355028e6cb285197a4 Mon Sep 17 00:00:00 2001
From: Devan Goodwin <dgoodwin@redhat.com>
Date: Wed, 2 Nov 2016 10:07:11 -0300
Subject: Deploy an OOM systemd override for openvswitch.
At recommendation of network team, more details in:
https://bugzilla.redhat.com/show_bug.cgi?id=1331590
---
roles/openshift_node/tasks/systemd_units.yml | 19 +++++++++++++++++--
.../templates/openvswitch-avoid-oom.conf | 3 +++
2 files changed, 20 insertions(+), 2 deletions(-)
create mode 100644 roles/openshift_node/templates/openvswitch-avoid-oom.conf
diff --git a/roles/openshift_node/tasks/systemd_units.yml b/roles/openshift_node/tasks/systemd_units.yml
index 27c9b48f0..f722a6e69 100644
--- a/roles/openshift_node/tasks/systemd_units.yml
+++ b/roles/openshift_node/tasks/systemd_units.yml
@@ -24,11 +24,26 @@
notify:
- restart openvswitch
+# May be a temporary workaround.
+# https://bugzilla.redhat.com/show_bug.cgi?id=1331590
+- name: Create OpenvSwitch service.d directory
+ file: path=/etc/systemd/system/openvswitch.service.d/ state=directory
+ when: openshift.common.use_openshift_sdn | default(true) | bool
+
+- name: Install OpenvSwitch service OOM fix
+ template:
+ dest: "/etc/systemd/system/openvswitch.service.d/01-avoid-oom.conf"
+ src: openvswitch-avoid-oom.conf
+ when: openshift.common.use_openshift_sdn | default(true) | bool
+ register: install_oom_fix_result
+ notify:
+ - restart openvswitch
+
- name: Install OpenvSwitch docker service file
template:
dest: "/etc/systemd/system/openvswitch.service"
src: openvswitch.docker.service
- when: openshift.common.is_containerized | bool and openshift.common.use_openshift_sdn | bool
+ when: openshift.common.is_containerized | bool and openshift.common.use_openshift_sdn | default(true) | bool
notify:
- restart openvswitch
@@ -67,6 +82,6 @@
- name: Reload systemd units
command: systemctl daemon-reload
- when: openshift.common.is_containerized | bool and (install_node_result | changed or install_ovs_sysconfig | changed or install_node_dep_result | changed)
+ when: (openshift.common.is_containerized | bool and (install_node_result | changed or install_ovs_sysconfig | changed or install_node_dep_result | changed)) or install_oom_fix_result | changed
notify:
- restart node
diff --git a/roles/openshift_node/templates/openvswitch-avoid-oom.conf b/roles/openshift_node/templates/openvswitch-avoid-oom.conf
new file mode 100644
index 000000000..3229bc56b
--- /dev/null
+++ b/roles/openshift_node/templates/openvswitch-avoid-oom.conf
@@ -0,0 +1,3 @@
+# Avoid the OOM killer for openvswitch and it's children:
+[Service]
+OOMScoreAdjust=-1000
--
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