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authorOpenShift Merge Robot <openshift-merge-robot@users.noreply.github.com>2017-11-16 02:59:34 -0800
committerGitHub <noreply@github.com>2017-11-16 02:59:34 -0800
commitd8f0bac2523ed80dc4251901c437e902c08cbbab (patch)
tree1bb17727d2e559f04193eaaf6bedafdbf6d0ce63 /roles/openshift_cluster_autoscaler
parentc27a19e61a164969752445f436eadff990de5092 (diff)
parent4526f5457d012bc14c16b844bebc3eaeaa8ff191 (diff)
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Merge pull request #5729 from kwoodson/cluster_autoscaler
Automatic merge from submit-queue. Adding support for cluster-autoscaler. This is the kubernetes cluster-autoscaler role. Features: - Updated lib_openshift to handle --role-namespace when modifying/creating rolebindings for specific namespaced role objects - openshift_cluster_autoscaler role to deploy the autoscaler
Diffstat (limited to 'roles/openshift_cluster_autoscaler')
-rw-r--r--roles/openshift_cluster_autoscaler/README.md58
-rw-r--r--roles/openshift_cluster_autoscaler/defaults/main.yml40
-rw-r--r--roles/openshift_cluster_autoscaler/files/clusterrole.yml41
-rw-r--r--roles/openshift_cluster_autoscaler/files/role.yml33
-rw-r--r--roles/openshift_cluster_autoscaler/meta/main.yml3
-rw-r--r--roles/openshift_cluster_autoscaler/tasks/aws.yml17
-rw-r--r--roles/openshift_cluster_autoscaler/tasks/main.yml72
-rw-r--r--roles/openshift_cluster_autoscaler/templates/aws-creds.j23
-rw-r--r--roles/openshift_cluster_autoscaler/templates/cluster-autoscaler.j258
9 files changed, 325 insertions, 0 deletions
diff --git a/roles/openshift_cluster_autoscaler/README.md b/roles/openshift_cluster_autoscaler/README.md
new file mode 100644
index 000000000..d775a8a71
--- /dev/null
+++ b/roles/openshift_cluster_autoscaler/README.md
@@ -0,0 +1,58 @@
+Openshift cluster autoscaler
+================================
+
+Install the cluster autoscaler
+
+Requirements
+------------
+
+* One or more Master servers
+* A cloud provider that supports the cluster-autoscaler
+
+Role Variables
+--------------
+Check defaults/main.yml
+
+Dependencies
+------------
+
+
+Example Playbook
+----------------
+
+#!/usr/bin/ansible-playbook
+```
+---
+- hosts: masters
+ gather_facts: no
+ remote_user: root
+ tasks:
+ - name: include role autoscaler
+ include_role:
+ name: openshift_cluster_autoscaler
+ vars:
+ openshift_clusterid: opstest
+ openshift_cluster_autoscaler_aws_key: <aws_key>
+ openshift_cluster_autoscaler_aws_secret_key: <aws_secret_key>
+```
+
+
+Notes
+-----
+
+This is currently experimental software. This role allows users to install the cluster-autoscaler and the necessary authorization pieces that allow the autoscaler to function.
+
+
+This feature requires cloud provider credentials or a serviceaccount that has access to scale up/down nodes within the scaling groups.
+
+https://github.com/kubernetes/autoscaler/tree/master/cluster-autoscaler
+
+License
+-------
+
+Apache License, Version 2.0
+
+Author Information
+------------------
+
+Openshift
diff --git a/roles/openshift_cluster_autoscaler/defaults/main.yml b/roles/openshift_cluster_autoscaler/defaults/main.yml
new file mode 100644
index 000000000..707e3c79b
--- /dev/null
+++ b/roles/openshift_cluster_autoscaler/defaults/main.yml
@@ -0,0 +1,40 @@
+---
+openshift_cluster_autoscaler_name: cluster-autoscaler
+openshift_cluster_autoscaler_version: 4
+
+openshift_cluster_autoscaler_template_location: /tmp
+openshift_cluster_autoscaler_template_name: "{{ openshift_cluster_autoscaler_name }}"
+
+openshift_cluster_autoscaler_node_selector:
+ type: infra
+
+openshift_cluster_autoscaler_state: present
+openshift_cluster_autoscaler_namespace: openshift-infra
+openshift_cluster_autoscaler_delete_config: True
+openshift_cluster_autoscaler_skip_nodes_local_storage: False
+openshift_cluster_autoscaler_serviceaccount: cluster-autoscaler
+openshift_cluster_autoscaler_region: us-east-1
+
+openshift_cluster_autoscaler_image: docker.io/openshift/kubernetes-autoscaler:v0.6.1
+
+openshift_cluster_autoscaler_cloud_provider: aws
+
+# AWS specific variables here
+openshift_cluster_autoscaler_aws_creds_name: aws-creds
+openshift_cluster_autoscaler_aws_secret_name: autoscaler-credentials
+openshift_cluster_autoscaler_aws_creds_path: "/var/run/secrets/{{ openshift_cluster_autoscaler_aws_creds_name }}/creds"
+openshift_cluster_autoscaler_aws_env_vars:
+- name: AWS_REGION
+ value: "{{ openshift_cluster_autoscaler_region }}"
+- name: AWS_SHARED_CREDENTIALS_FILE
+ value: "{{ openshift_cluster_autoscaler_aws_creds_path }}"
+
+## End AWS vars ##
+
+openshift_cluster_autoscaler_env_vars: []
+
+
+openshift_cluster_autoscaler_node_groups:
+- min: 3
+ max: 10
+ name: "{{ openshift_cluster_autoscaler_node_group_name | default(openshift_clusterid ~ ' openshift compute') }}"
diff --git a/roles/openshift_cluster_autoscaler/files/clusterrole.yml b/roles/openshift_cluster_autoscaler/files/clusterrole.yml
new file mode 100644
index 000000000..a4691888a
--- /dev/null
+++ b/roles/openshift_cluster_autoscaler/files/clusterrole.yml
@@ -0,0 +1,41 @@
+---
+apiVersion: v1
+kind: ClusterRole
+metadata:
+ name: system:cluster-autoscaler
+rules:
+- apiGroups:
+ - ""
+ resources:
+ - nodes
+ - persistentvolumeclaims
+ - persistentvolumes
+ - pods
+ - replicationcontrollers
+ - services
+ verbs:
+ - get
+ - list
+ - watch
+ attributeRestrictions: null
+- apiGroups:
+ - extensions
+ - apps
+ resources:
+ - daemonsets
+ - replicasets
+ - statefulsets
+ verbs:
+ - get
+ - list
+ - watch
+ attributeRestrictions: null
+- apiGroups:
+ - policy
+ resources:
+ - poddisruptionbudgets
+ verbs:
+ - get
+ - list
+ - watch
+ attributeRestrictions: null
diff --git a/roles/openshift_cluster_autoscaler/files/role.yml b/roles/openshift_cluster_autoscaler/files/role.yml
new file mode 100644
index 000000000..c2abb5435
--- /dev/null
+++ b/roles/openshift_cluster_autoscaler/files/role.yml
@@ -0,0 +1,33 @@
+---
+apiVersion: v1
+kind: Role
+metadata:
+ name: cluster-autoscaler
+rules:
+- apiGroups:
+ - ""
+ resources:
+ - configmaps
+ resourceNames:
+ - cluster-autoscaler
+ - cluster-autoscaler-status
+ verbs:
+ - create
+ - get
+ - patch
+ - update
+ attributeRestrictions: null
+- apiGroups:
+ - ""
+ resources:
+ - configmaps
+ verbs:
+ - create
+ attributeRestrictions: null
+- apiGroups:
+ - ""
+ resources:
+ - events
+ verbs:
+ - create
+ attributeRestrictions: null
diff --git a/roles/openshift_cluster_autoscaler/meta/main.yml b/roles/openshift_cluster_autoscaler/meta/main.yml
new file mode 100644
index 000000000..d2bbd2576
--- /dev/null
+++ b/roles/openshift_cluster_autoscaler/meta/main.yml
@@ -0,0 +1,3 @@
+---
+dependencies:
+- lib_openshift
diff --git a/roles/openshift_cluster_autoscaler/tasks/aws.yml b/roles/openshift_cluster_autoscaler/tasks/aws.yml
new file mode 100644
index 000000000..f08e97ebc
--- /dev/null
+++ b/roles/openshift_cluster_autoscaler/tasks/aws.yml
@@ -0,0 +1,17 @@
+---
+- when: openshift_cluster_autoscaler_cloud_provider == 'aws'
+ block:
+ - name: laydown the aws-credentials
+ template:
+ src: aws-creds.j2
+ dest: "{{ openshift_cluster_autoscaler_template_location }}/{{ openshift_cluster_autoscaler_aws_creds_name }}"
+ when: openshift_cluster_autoscaler_state == 'present'
+
+ - name: create the aws creds secret
+ oc_secret:
+ state: "{{ openshift_cluster_autoscaler_state }}"
+ name: "{{ openshift_cluster_autoscaler_aws_secret_name }}"
+ namespace: "{{ openshift_cluster_autoscaler_namespace }}"
+ files:
+ - name: creds
+ path: "{{ openshift_cluster_autoscaler_template_location }}/{{ openshift_cluster_autoscaler_aws_creds_name }}"
diff --git a/roles/openshift_cluster_autoscaler/tasks/main.yml b/roles/openshift_cluster_autoscaler/tasks/main.yml
new file mode 100644
index 000000000..173dcf044
--- /dev/null
+++ b/roles/openshift_cluster_autoscaler/tasks/main.yml
@@ -0,0 +1,72 @@
+---
+- name: create the cluster-autoscaler serviceaccount
+ oc_serviceaccount:
+ name: "{{ openshift_cluster_autoscaler_serviceaccount }}"
+ namespace: "{{ openshift_cluster_autoscaler_namespace }}"
+ state: "{{ openshift_cluster_autoscaler_state }}"
+
+- name: copy the cluster-autoscaler files
+ copy:
+ src: "{{ item }}"
+ dest: "{{ openshift_cluster_autoscaler_template_location }}/{{ item }}"
+ with_items:
+ - clusterrole.yml
+ - role.yml
+ when: openshift_cluster_autoscaler_state == 'present'
+
+- name: "Ensure the cluster-autoscaler roles are {{ openshift_cluster_autoscaler_state }}"
+ oc_obj:
+ namespace: "{{ openshift_cluster_autoscaler_namespace }}"
+ state: "{{ openshift_cluster_autoscaler_state }}"
+ kind: "{{ item.type }}"
+ name: "{{ item.name }}"
+ delete_after: "{{ openshift_cluster_autoscaler_delete_config }}"
+ files:
+ - "{{ openshift_cluster_autoscaler_template_location }}/{{ item.fname }}"
+ with_items:
+ - fname: clusterrole.yml
+ type: clusterrole
+ name: "system:{{ openshift_cluster_autoscaler_name }}"
+ - fname: role.yml
+ type: role
+ name: "{{ openshift_cluster_autoscaler_name }}"
+
+- include: aws.yml
+ when: openshift_cluster_autoscaler_cloud_provider == 'aws'
+
+- name: create the policies
+ oc_adm_policy_user:
+ state: "{{ openshift_cluster_autoscaler_state }}"
+ user: "system:serviceaccount:openshift-infra:{{ openshift_cluster_autoscaler_serviceaccount }}"
+ namespace: "{{ openshift_cluster_autoscaler_namespace }}"
+ resource_kind: "{{ item.name }}"
+ resource_name: cluster-autoscaler
+ role_namespace: "{{ item.role_namespace | default(omit) }}"
+ with_items:
+ - name: cluster-role
+ - name: role
+ role_namespace: "{{ openshift_cluster_autoscaler_namespace }}"
+
+- name: "grant cluster-reader to {{ openshift_cluster_autoscaler_serviceaccount }}"
+ oc_adm_policy_user:
+ state: "{{ openshift_cluster_autoscaler_state }}"
+ user: "system:serviceaccount:{{ openshift_cluster_autoscaler_namespace }}:{{ openshift_cluster_autoscaler_serviceaccount }}"
+ namespace: "{{ openshift_cluster_autoscaler_namespace }}"
+ resource_name: cluster-reader
+ resource_kind: cluster-role
+
+- name: laydown the deployment file for cluster-autoscaler
+ template:
+ src: cluster-autoscaler.j2
+ dest: "{{ openshift_cluster_autoscaler_template_location }}/{{ openshift_cluster_autoscaler_template_name }}"
+ when: openshift_cluster_autoscaler_state == 'present'
+
+- name: "Ensure the cluster-autoscaler is {{ openshift_cluster_autoscaler_state }}"
+ oc_obj:
+ namespace: "{{ openshift_cluster_autoscaler_namespace }}"
+ state: "{{ openshift_cluster_autoscaler_state }}"
+ kind: deployment
+ name: "{{ openshift_cluster_autoscaler_name }}"
+ delete_after: "{{ openshift_cluster_autoscaler_delete_config }}"
+ files:
+ - "{{ openshift_cluster_autoscaler_template_location }}/{{ openshift_cluster_autoscaler_template_name }}"
diff --git a/roles/openshift_cluster_autoscaler/templates/aws-creds.j2 b/roles/openshift_cluster_autoscaler/templates/aws-creds.j2
new file mode 100644
index 000000000..28399e652
--- /dev/null
+++ b/roles/openshift_cluster_autoscaler/templates/aws-creds.j2
@@ -0,0 +1,3 @@
+[default]
+aws_access_key_id = {{ openshift_cluster_autoscaler_aws_key }}
+aws_secret_access_key = {{ openshift_cluster_autoscaler_aws_secret_key }}
diff --git a/roles/openshift_cluster_autoscaler/templates/cluster-autoscaler.j2 b/roles/openshift_cluster_autoscaler/templates/cluster-autoscaler.j2
new file mode 100644
index 000000000..f76bce37b
--- /dev/null
+++ b/roles/openshift_cluster_autoscaler/templates/cluster-autoscaler.j2
@@ -0,0 +1,58 @@
+---
+apiVersion: extensions/v1beta1
+kind: Deployment
+metadata:
+ labels:
+ app: {{ openshift_cluster_autoscaler_name }}
+ name: {{ openshift_cluster_autoscaler_name }}
+ namespace: {{ openshift_cluster_autoscaler_namespace }}
+spec:
+ replicas: 1
+ selector:
+ matchLabels:
+ app: {{ openshift_cluster_autoscaler_name }}
+ role: infra
+ template:
+ metadata:
+ labels:
+ app: {{ openshift_cluster_autoscaler_name }}
+ role: infra
+ spec:
+ containers:
+ - args:
+ - --alsologtostderr
+ - --v={{ openshift_cluster_autoscaler_version }}
+ - --skip-nodes-with-local-storage={{ openshift_cluster_autoscaler_skip_nodes_local_storage }}
+ - --leader-elect-resource-lock=configmaps
+ - --namespace={{ openshift_cluster_autoscaler_namespace }}
+{% if openshift_cluster_autoscaler_scale_down_delay is defined %}
+ - --scale-down-delay={{ openshift_cluster_autoscaler_scale_down_delay }}
+{% endif %}
+ - --cloud-provider={{ openshift_cluster_autoscaler_cloud_provider }}
+{% for group in openshift_cluster_autoscaler_node_groups %}
+ - --nodes={{ group.min }}:{{ group.max }}:{{ group.name }}
+{% endfor %}
+{% if openshift_cluster_autoscaler_cloud_provider == 'aws' %}
+ env: {{ openshift_cluster_autoscaler_aws_env_vars | union(openshift_cluster_autoscaler_env_vars) | to_json }}
+{% else %}
+ env: {{ openshift_cluster_autoscaler_env_vars }}
+{% endif %}
+ image: {{ openshift_cluster_autoscaler_image }}
+ name: autoscaler
+{% if openshift_cluster_autoscaler_cloud_provider == 'aws' %}
+ volumeMounts:
+ - mountPath: {{ openshift_cluster_autoscaler_aws_creds_path | dirname }}
+ name: {{ openshift_cluster_autoscaler_aws_creds_name }}
+ readOnly: true
+{% endif %}
+ nodeSelector: {{ openshift_cluster_autoscaler_node_selector | to_json }}
+ dnsPolicy: ClusterFirst
+ serviceAccountName: {{ openshift_cluster_autoscaler_serviceaccount }}
+ terminationGracePeriodSeconds: 30
+{% if openshift_cluster_autoscaler_cloud_provider == 'aws' %}
+ volumes:
+ - name: {{ openshift_cluster_autoscaler_aws_creds_name }}
+ secret:
+ defaultMode: 420
+ secretName: {{ openshift_cluster_autoscaler_aws_secret_name }}
+{% endif %}