Merge pull request #546 from chadswen/dependency-variables

Parameterize dependency endpoints

roles/dnsmasq/defaults/main.yml

@@ -10,3 +10,10 @@
 # Max of 2 is allowed here (a 1 is reserved for the dns_server)
 #nameservers:
 #  - 127.0.0.1
+
+# Versions
+dnsmasq_version: 2.72
+
+# Images
+dnsmasq_image_repo: "andyshinn/dnsmasq"
+dnsmasq_image_tag: "{{ dnsmasq_version }}"

roles/dnsmasq/templates/dnsmasq-ds.yml

@@ -14,7 +14,7 @@ spec:
     spec:
       containers:
         - name: dnsmasq
-          image: andyshinn/dnsmasq:2.72
+          image: "{{ dnsmasq_image_repo }}:{{ dnsmasq_image_tag }}"
           command:
             - dnsmasq
           args:

roles/download/defaults/main.yml

@@ -15,6 +15,7 @@ calico_cni_version: v1.4.2
 weave_version: v1.6.1
 flannel_version: v0.6.2
 flannel_server_helper_version: 0.1
+pod_infra_version: 3.0
 
 # Download URL's
 etcd_download_url: "https://storage.googleapis.com/kargo/{{etcd_version}}_etcd"
@@ -43,6 +44,8 @@ calico_node_image_repo: "calico/node"
 calico_node_image_tag: "{{ calico_version }}"
 hyperkube_image_repo: "quay.io/coreos/hyperkube"
 hyperkube_image_tag: "{{ kube_version }}_coreos.0"
+pod_infra_image_repo: "gcr.io/google_containers/pause-amd64"
+pod_infra_image_tag: "{{ pod_infra_version }}"
 
 downloads:
   calico_cni_plugin:
@@ -108,6 +111,10 @@ downloads:
     repo: "{{ calico_node_image_repo }}"
     tag: "{{ calico_node_image_tag }}"
     enabled: "{{ kube_network_plugin == 'calico' }}"
+  pod_infra:
+    container: true
+    repo: "{{ pod_infra_image_repo }}"
+    tag: "{{ pod_infra_image_tag }}"
 
 download:
   container: "{{ file.container|default('false') }}"

roles/kubernetes-apps/ansible/defaults/main.yml

@@ -0,0 +1,12 @@
+# Versions
+kubedns_version: 1.7
+kubednsmasq_version: 1.3
+exechealthz_version: 1.1
+
+# Images
+kubedns_image_repo: "gcr.io/google_containers/kubedns-amd64"
+kubedns_image_tag: "{{ kubedns_version }}"
+kubednsmasq_image_repo: "gcr.io/google_containers/kube-dnsmasq-amd64"
+kubednsmasq_image_tag: "{{ kubednsmasq_version }}"
+exechealthz_image_repo: "gcr.io/google_containers/exechealthz-amd64"
+exechealthz_image_tag: "{{ exechealthz_version }}"

roles/kubernetes-apps/ansible/templates/kubedns-rc.yml

@@ -21,7 +21,7 @@ spec:
     spec:
       containers:
       - name: kubedns
-        image: gcr.io/google_containers/kubedns-amd64:1.7
+        image: "{{ kubedns_image_repo }}:{{ kubedns_image_tag }}"
         resources:
           # TODO: Set memory limits when we've profiled the container for large
           # clusters, then set request = limit to keep this container in
@@ -63,7 +63,7 @@ spec:
           name: dns-tcp-local
           protocol: TCP
       - name: dnsmasq
-        image: gcr.io/google_containers/kube-dnsmasq-amd64:1.3
+        image: "{{ kubednsmasq_image_repo }}:{{ kubednsmasq_image_tag }}"
         args:
         - --log-facility=-
         - --cache-size=1000
@@ -77,7 +77,7 @@ spec:
           name: dns-tcp
           protocol: TCP
       - name: healthz
-        image: gcr.io/google_containers/exechealthz-amd64:1.1
+        image: "{{ exechealthz_image_repo }}:{{ exechealthz_image_tag }}"
         resources:
           # keep request = limit to keep this container in guaranteed class
           limits:

roles/kubernetes/node/meta/main.yml

@@ -2,4 +2,6 @@
 dependencies:
   - role: download
     file: "{{ downloads.hyperkube }}"
+  - role: download
+    file: "{{ downloads.pod_infra }}"
   - role: kubernetes/secrets

roles/kubernetes/node/templates/kubelet.j2

@@ -20,11 +20,11 @@ KUBELET_REGISTER_NODE="--register-node=false"
 {% endif %}
 # location of the api-server
 {% if dns_setup|bool and skip_dnsmasq|bool %}
-KUBELET_ARGS="--cluster_dns={{ skydns_server }} --cluster_domain={{ dns_domain }} --kubeconfig={{ kube_config_dir}}/node-kubeconfig.yaml --config={{ kube_manifest_dir }} --resolv-conf={{ kube_resolv_conf }}"
+KUBELET_ARGS="--cluster_dns={{ skydns_server }} --cluster_domain={{ dns_domain }} --kubeconfig={{ kube_config_dir}}/node-kubeconfig.yaml --config={{ kube_manifest_dir }} --resolv-conf={{ kube_resolv_conf }} --pod-infra-container-image={{ pod_infra_image_repo }}:{{ pod_infra_image_tag }}"
 {% elif dns_setup|bool %}
-KUBELET_ARGS="--cluster_dns={{ dns_server }} --cluster_domain={{ dns_domain }} --kubeconfig={{ kube_config_dir}}/node-kubeconfig.yaml --config={{ kube_manifest_dir }} --resolv-conf={{ kube_resolv_conf }}"
+KUBELET_ARGS="--cluster_dns={{ dns_server }} --cluster_domain={{ dns_domain }} --kubeconfig={{ kube_config_dir}}/node-kubeconfig.yaml --config={{ kube_manifest_dir }} --resolv-conf={{ kube_resolv_conf }} --pod-infra-container-image={{ pod_infra_image_repo }}:{{ pod_infra_image_tag }}"
 {% else %}
-KUBELET_ARGS="--kubeconfig={{ kube_config_dir}}/kubelet.kubeconfig --config={{ kube_manifest_dir }}"
+KUBELET_ARGS="--kubeconfig={{ kube_config_dir}}/kubelet.kubeconfig --config={{ kube_manifest_dir }} --pod-infra-container-image={{ pod_infra_image_repo }}:{{ pod_infra_image_tag }}"
 {% endif %}
 {% if kube_network_plugin is defined and kube_network_plugin in ["calico", "weave"] %}
 KUBELET_NETWORK_PLUGIN="--network-plugin=cni --network-plugin-dir=/etc/cni/net.d"

roles/kubernetes/preinstall/defaults/main.yml

@@ -21,6 +21,8 @@ kube_log_dir: "/var/log/kubernetes"
 # pods on startup
 kube_manifest_dir: "{{ kube_config_dir }}/manifests"
 
+epel_rpm_download_url: "https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm"
+
 # change to 0.0.0.0 to enable insecure access from anywhere (not recommended)
 kube_apiserver_insecure_bind_address: 127.0.0.1
 

roles/kubernetes/preinstall/tasks/main.yml

@@ -91,7 +91,7 @@
   changed_when: False
 
 - name: Install epel-release on RedHat/CentOS
-  shell: rpm -qa | grep epel-release || rpm -ivh https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
+  shell: rpm -qa | grep epel-release || rpm -ivh {{ epel_rpm_download_url }}
   when: ansible_distribution in ["CentOS","RedHat"] and
         ansible_distribution_major_version >= 7
   changed_when: False