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|
---
kind: DaemonSet
apiVersion: extensions/v1beta1
metadata:
name: {{ openshift_daemonset_config_daemonset_name }}
annotations:
kubernetes.io/description: |
This daemon set manages the operational configuration for a cluster and ensures all nodes have
a concrete set of config in place. It could also use a local ansible run against the /host directory.
spec:
selector:
matchLabels:
app: {{ openshift_daemonset_config_daemonset_name }}
confighosts: ops
ops.openshift.io/role: operations
updateStrategy:
type: RollingUpdate
template:
metadata:
labels:
app: {{ openshift_daemonset_config_daemonset_name }}
confighosts: ops
ops.openshift.io/role: operations
annotations:
scheduler.alpha.kubernetes.io/critical-pod: ''
spec:
{% if openshift_daemonset_config_node_selector is defined and openshift_daemonset_config_node_selector != {} %}
nodeSelector: {{ openshift_daemonset_config_node_selector | to_json }}
{% endif %}
serviceAccountName: {{ openshift_daemonset_config_sa_name }}
hostNetwork: true
hostPID: true
hostIPC: true
containers:
- name: config
image: "{{ openshift_daemonset_config_image }}"
env:
- name: RESYNC_INTERVAL
value: "{{ openshift_daemonset_config_interval }}"
command:
- /bin/bash
- -c
- |
#!/bin/sh
set -o errexit
while true; do
# execute user defined script
sh /opt/config/{{ openshift_daemonset_config_script }}
# sleep for ${RESYNC_INTERVAL} minutes, then loop. if we fail Kubelet will restart us again
echo "Success, sleeping for ${RESYNC_INTERVAL}s. Date: $(date)"
sleep ${RESYNC_INTERVAL}
# Return to perform the config
done
securityContext:
# Must be root to modify host system
runAsUser: {{ openshift_daemonset_config_runasuser }}
# Permission could be reduced by selecting an appropriate SELinux policy that allows
# us to update the named directories
privileged: {{ openshift_daemonset_config_privileged }}
volumeMounts:
# Directory which contains the host volume.
- mountPath: /host
name: host
# Our node configuration
- mountPath: /opt/config
name: config
- mountPath: /opt/tmp_shared_config
name: tmp-shared-dir
{% if openshift_daemonset_config_secrets != {} %}
# Our delivered secrets
- mountPath: /opt/secrets
name: secrets
{% endif %}
resources:
requests:
cpu: {{ openshift_daemonset_config_resources.cpu }}
memory: {{ openshift_daemonset_config_resources.memory }}
{% if openshift_daemonset_config_monitoring %}
- name: monitoring
image: "{{ openshift_daemonset_config_monitoring_image }}"
env:
- name: OO_PAUSE_ON_START
value: "{{ openshift_daemonset_config_monitoring_pos }}"
securityContext:
# Must be root to read content
runAsUser: 0
privileged: true
volumeMounts:
- mountPath: /host
name: host
readOnly: true
- mountPath: /etc/localtime
subPath: etc/localtime
name: host
readOnly: true
- mountPath: /sys
subPath: sys
name: host
readOnly: true
- mountPath: /var/run/docker.sock
subPath: var/run/docker.sock
name: host
readOnly: true
- mountPath: /var/run/openvswitch
subPath: var/run/openvswitch
name: host
readOnly: true
- mountPath: /etc/origin
subPath: etc/origin
name: host
readOnly: true
- mountPath: /usr/bin/oc
subPath: usr/bin/oc
name: host
readOnly: true
name: host
readOnly: true
- mountPath: /host/var/cache/yum
subPath: var/cache/yum
name: host
readOnly: true
- mountPath: /container_setup
name: tmp-shared-dir
- mountPath: /opt/config
name: config
{% if openshift_daemonset_config_secrets != {} %}
- mountPath: /opt/secrets
name: secrets
{% endif %}
resources:
requests:
cpu: 10m
memory: 10Mi
{% endif %}
volumes:
- name: tmp-shared-dir
emptyDir: {}
- name: config
configMap:
name: {{ openshift_daemonset_config_configmap_name }}
{% if openshift_daemonset_config_secrets != {} %}
- name: secrets
secret:
secretName: {{ openshift_daemonset_config_secret_name }}
{% endif %}
- name: host
hostPath:
path: /
|
