Added seed code for caas-kubedns.

Added seed code for caas-kubedns.

Change-Id: I00d1eac893403d91868685b597f230beefe44501
Signed-off-by: Szekeres, Balazs (Nokia - HU/Budapest) <balazs.szekeres@nokia.com>

diff --git a/LICENSE b/LICENSE
new file mode 100644 (file)
index 0000000..e454a52
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,178 @@
+
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diff --git a/ansible/playbooks/kubedns.yaml b/ansible/playbooks/kubedns.yaml
new file mode 100644 (file)
index 0000000..ed8b95d
--- /dev/null
+++ b/ansible/playbooks/kubedns.yaml
@@ -0,0 +1,22 @@
+---
+# Copyright 2019 Nokia
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# cmframework.requires: rbac.yaml
+- hosts: caas_master
+  strategy: free
+  become: true
+  become_user: "{{ users.admin_user_name }}"
+  roles:
+    - kubedns

diff --git a/ansible/roles/kubedns/meta/main.yaml b/ansible/roles/kubedns/meta/main.yaml
new file mode 100644 (file)
index 0000000..b116774
--- /dev/null
+++ b/ansible/roles/kubedns/meta/main.yaml
@@ -0,0 +1,37 @@
+---
+# Copyright 2019 Nokia
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+dependencies:
+  - role: docker_image_load
+    images:
+      - kubedns
+
+  - role: creategroup
+    _name: kubedns
+    _gid: "{{ caas.uid.kubedns }}"
+    become: true
+    become_user: "root"
+
+  - role: createuser
+    _name: kubedns
+    _group: kubedns
+    _groups: ''
+    _shell: /sbin/nologin
+    _home: /var/lib/kubedns
+    _uid: "{{ caas.uid.kubedns }}"
+    become: true
+    become_user: "root"
+
+  - role: manifests

diff --git a/ansible/roles/kubedns/tasks/main.yml b/ansible/roles/kubedns/tasks/main.yml
new file mode 100644 (file)
index 0000000..e258efe
--- /dev/null
+++ b/ansible/roles/kubedns/tasks/main.yml
@@ -0,0 +1,57 @@
+---
+# Copyright 2019 Nokia
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+- name: template external dns configmap
+  template:
+    src: kubedns-external-dns-cm.yml
+    dest: /etc/kubernetes/kubeconfig/kubedns-external-dns-cm.yml
+  become_user: "root"
+
+- name: template manifest
+  template:
+    src: kubedns-deployment.yml
+    dest: "{{ caas.manifests_directory }}/kubedns-deployment.yml"
+  become_user: "root"
+
+- name: template manifest
+  template:
+    src: kubedns-service.yml
+    dest: "{{ caas.manifests_directory }}/kubedns-service.yml"
+  become_user: "root"
+
+- name: Load the external dns configmap
+  kubectl:
+    manifest: "/etc/kubernetes/kubeconfig/kubedns-external-dns-cm.yml"
+    state: present
+  when: ( nodename | search("caas_master1") )
+
+- name: Load the kubedns deployment
+  kubectl:
+    manifest: "{{ caas.manifests_directory }}/kubedns-deployment.yml"
+    state: present
+  when: ( nodename | search("caas_master1") )
+
+- name: Load the kubedns service
+  kubectl:
+    manifest: "{{ caas.manifests_directory }}/kubedns-service.yml"
+    state: present
+  when: ( nodename | search("caas_master1") )
+
+- name: wait for container to start
+  shell: "kubectl get po --all-namespaces | grep kube-dns"
+  register: result
+  until: result.stdout.find("2/2") != -1
+  retries: 120
+  delay: 1

diff --git a/ansible/roles/kubedns/templates/kubedns-deployment.yml b/ansible/roles/kubedns/templates/kubedns-deployment.yml
new file mode 100644 (file)
index 0000000..e95c78f
--- /dev/null
+++ b/ansible/roles/kubedns/templates/kubedns-deployment.yml
@@ -0,0 +1,166 @@
+{#
+Copyright 2019 Nokia
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+#}
+---
+apiVersion: apps/v1beta2
+kind: DaemonSet
+metadata:
+  name: kube-dns
+  namespace: kube-system
+  labels:
+    {{ caas.kubernetes_component_label }}: kube-dns
+    kubernetes.io/cluster-service: "true"
+    addonmanager.kubernetes.io/mode: Reconcile
+spec:
+  selector:
+    matchLabels:
+      {{ caas.kubernetes_component_label }}: kube-dns
+  template:
+    metadata:
+      labels:
+        {{ caas.kubernetes_component_label }}: kube-dns
+      annotations:
+        scheduler.alpha.kubernetes.io/critical-pod: ''
+        scheduler.alpha.kubernetes.io/tolerations: '[{"key":"CriticalAddonsOnly", "operator":"Exists"}]'
+    spec:
+      hostNetwork: true
+      nodeSelector:
+        nodetype: caas_master
+      tolerations:
+      - key: "CriticalAddonsOnly"
+        operator: "Exists"
+      volumes:
+      - name: secret
+        hostPath:
+          path: /etc/kubernetes/ssl
+      - name: secret-root-ca
+        hostPath:
+          path: /etc/openssl/ca.pem
+      - name: resolv
+        hostPath:
+          path: /etc/resolv.conf
+      - name: kubeconfig
+        hostPath:
+          path: /etc/kubernetes/kubeconfig
+      - name: external-dns-conf
+        configMap:
+          name: external-dns-cm
+      containers:
+      - name: kubedns
+        image: {{ container_image_names | select('search', '/kubedns') | list | last }}
+        securityContext:
+          runAsUser: {{ caas.uid.kubedns }}
+        resources:
+          # TODO: Set memory limits when we've profiled the container for large
+          # clusters, then set request = limit to keep this container in
+          # guaranteed class. Currently, this container falls into the
+          # "burstable" category so the kubelet doesn't backoff from restarting it.
+          limits:
+            memory: 170Mi
+          requests:
+            cpu: 100m
+            memory: 70Mi
+        livenessProbe:
+          tcpSocket:
+            port: 53
+          initialDelaySeconds: 60
+          timeoutSeconds: 5
+          successThreshold: 1
+          failureThreshold: 5
+        readinessProbe:
+          httpGet:
+            path: /readiness
+            port: 8081
+            scheme: HTTP
+          # we poll on pod startup for the Kubernetes master service and
+          # only setup the /readiness HTTP server once that's available.
+          initialDelaySeconds: 3
+          timeoutSeconds: 5
+        command:
+        - /usr/bin/kube-dns
+        args:
+        - --domain=nokia.net.
+        - --dns-port=10053
+        - --config-dir=/etc/dns_config
+        - --v=2
+        ports:
+        - containerPort: 10053
+          name: dns-local
+          protocol: UDP
+        - containerPort: 10053
+          name: dns-tcp-local
+          protocol: TCP
+        - containerPort: 10055
+          name: metrics
+          protocol: TCP
+        volumeMounts:
+        - name: secret
+          mountPath: /etc/kubernetes/ssl
+          readOnly: true
+        - name: secret-root-ca
+          mountPath: /etc/openssl/ca.pem
+          readOnly: true
+        - name: kubeconfig
+          mountPath: /etc/kubernetes/kubeconfig
+          readOnly: true
+        - name: resolv
+          mountPath: /etc/resolv.conf
+        - name: external-dns-conf
+          mountPath: /etc/dns_config
+      - name: dnsmasq
+        image: {{ container_image_names | select('search', '/kubedns') | list | last }}
+        securityContext:
+          capabilities:
+            add: ["NET_BIND_SERVICE"]
+          runAsUser: {{ caas.uid.kubedns }}
+        livenessProbe:
+          tcpSocket:
+            port: 53
+          initialDelaySeconds: 60
+          timeoutSeconds: 5
+          successThreshold: 1
+          failureThreshold: 5
+        command:
+        - /usr/bin/dnsmasq-nanny
+        args:
+        - -v=2
+        - -logtostderr
+        - -configDir=/etc/k8s/dns/dnsmasq-nanny
+        - -restartDnsmasq=true
+        - --
+        - -k
+        - --interface={{ networking.infra_internal.interface }}
+        - --bind-interfaces
+        - --dns-forward-max=1000
+        - --cache-size=10000
+        - --server=/nokia.net/127.0.0.1#10053
+        # see: https://github.com/kubernetes/kubernetes/issues/29055 for details
+        resources:
+          requests:
+            cpu: 150m
+            memory: 20Mi
+        volumeMounts:
+        - name: secret
+          mountPath: /etc/kubernetes/ssl
+          readOnly: true
+        - name: kubeconfig
+          mountPath: /etc/kubernetes/kubeconfig
+          readOnly: true
+        - name: resolv
+          mountPath: /etc/resolv.conf
+        - name: external-dns-conf
+          mountPath: /etc/k8s/dns/dnsmasq-nanny
+      dnsPolicy: Default  # Don't use cluster DNS.
+      serviceAccountName: kube-dns

diff --git a/ansible/roles/kubedns/templates/kubedns-external-dns-cm.yml b/ansible/roles/kubedns/templates/kubedns-external-dns-cm.yml
new file mode 100644 (file)
index 0000000..4a9717c
--- /dev/null
+++ b/ansible/roles/kubedns/templates/kubedns-external-dns-cm.yml
@@ -0,0 +1,24 @@
+{#
+Copyright 2019 Nokia
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+#}
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: external-dns-cm
+  namespace: kube-system
+data:
+  upstreamNameservers: |
+    {{ networking.dns | default([], True) | to_nice_json | indent(4) }}

diff --git a/ansible/roles/kubedns/templates/kubedns-service.yml b/ansible/roles/kubedns/templates/kubedns-service.yml
new file mode 100644 (file)
index 0000000..1451579
--- /dev/null
+++ b/ansible/roles/kubedns/templates/kubedns-service.yml
@@ -0,0 +1,37 @@
+{#
+Copyright 2019 Nokia
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+#}
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: kube-dns
+  namespace: kube-system
+  labels:
+    {{ caas.kubernetes_component_label }}: kube-dns
+    kubernetes.io/cluster-service: "true"
+    addonmanager.kubernetes.io/mode: Reconcile
+    kubernetes.io/name: "KubeDNS"
+spec:
+  selector:
+    {{ caas.kubernetes_component_label }}: kube-dns
+  clusterIP: {{ caas.dns_svc_ip }}
+  ports:
+  - name: dns
+    port: 53
+    protocol: UDP
+  - name: dns-tcp
+    port: 53
+    protocol: TCP

diff --git a/docker-build/kubedns/Dockerfile b/docker-build/kubedns/Dockerfile
new file mode 100644 (file)
index 0000000..5fedec1
--- /dev/null
+++ b/docker-build/kubedns/Dockerfile
@@ -0,0 +1,49 @@
+# Copyright 2019 Nokia
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+FROM alpine:3.9
+MAINTAINER Balazs Szekeres <balazs.szekeres@nokia.com>
+
+ARG KUBEDNS
+ENV KUBEDNS_VERSION=$KUBEDNS
+ENV GOPATH /build
+ENV PATH /usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
+
+RUN apk update \
+&&  apk upgrade \
+&&  apk add sudo \
+&&  apk add --update libcap \
+&&  adduser -u 145 -D -H -s /sbin/nologin kubedns \
+&&  mkdir -p /home/kubedns \
+&&  chown -R kubedns:kubedns /home/kubedns \
+&&  chown -R kubedns:kubedns /etc \
+&&  apk add --no-cache --virtual .build-deps build-base git mercurial go glide bash tar curl \
+&&  apk add --no-cache dnsmasq \
+&&  mkdir -p $GOPATH/src/k8s.io/dns \
+&&  curl -fsSL -k https://github.com/kubernetes/dns/archive/${KUBEDNS_VERSION}.tar.gz | tar zx --strip-components=1 -C $GOPATH/src/k8s.io/dns \
+&&  cd $GOPATH/src/k8s.io/dns \
+&&  PKG=k8s.io/dns ARCH=amd64 VERSION=${KUBEDNS_VERSION} ./build/build.sh \
+&&  mv $GOPATH/bin/linux_amd64/kube-dns /usr/bin/kube-dns \
+&&  mv $GOPATH/bin/linux_amd64/dnsmasq-nanny /usr/bin/dnsmasq-nanny \
+&&  setcap 'cap_net_bind_service=+ep' /usr/sbin/dnsmasq \
+&&  apk del .build-deps \
+&&  rm -rf $GOPATH \
+&&  rm -rf /build \
+&&  rm -rf /root/.glide
+
+USER kubedns
+ENV HOME /home/kubedns
+WORKDIR $HOME
+
+

diff --git a/docker-build/kubedns/bom.json b/docker-build/kubedns/bom.json
new file mode 100644 (file)
index 0000000..b30c69f
--- /dev/null
+++ b/docker-build/kubedns/bom.json
@@ -0,0 +1,202 @@
+{
+  "bom": [
+    {
+      "name": "alpine-linux-container",
+      "version": "3.9",
+      "source-url": "https://github.com/gliderlabs/docker-alpine/archive/c4f4c7a6e14d6efeb9a160da464717e03d2cc3ee.tar.gz",
+      "foss": "yes"
+    },
+    {
+      "name": "musl",
+      "version": "1.1.20-r3",
+      "source-url": "https://git.alpinelinux.org/cgit/aports/tree/main/musl/APKBUILD?h=3.9-stable",
+      "foss": "yes"
+    },
+    {
+      "name": "busybox",
+      "version": "1.29.3-r10",
+      "source-url": "https://git.alpinelinux.org/cgit/aports/tree/main/busybox/APKBUILD?h=3.9-stable",
+      "foss": "yes"
+    },
+    {
+      "name": "alpine-baselayout",
+      "version": "3.1.0-r3",
+      "source-url": "https://git.alpinelinux.org/cgit/aports/tree/main/alpine-baselayout/APKBUILD?h=3.9-stable",
+      "foss": "yes"
+    },
+    {
+      "name": "alpine-keys",
+      "version": "2.1-r1",
+      "source-url": "https://git.alpinelinux.org/cgit/aports/tree/main/alpine-keys/APKBUILD?h=3.9-stable",
+      "foss": "yes"
+    },
+    {
+      "name": "libcrypto1.1",
+      "version": "1.1.1a-r1",
+      "source-url": "https://git.alpinelinux.org/aports/tree/main/openssl/APKBUILD?h=3.9-stable",
+      "foss": "yes"
+    },
+    {
+      "name": "libssl1.1",
+      "version": "1.1.1a-r1",
+      "source-url": "https://git.alpinelinux.org/aports/tree/main/openssl/APKBUILD?h=3.9-stable",
+      "foss": "yes"
+    },
+    {
+      "name": "ca-certificates-cacert",
+      "version": "20190108-r0",
+      "source-url": "https://git.alpinelinux.org/aports/tree/main/ca-certificates/APKBUILD?h=3.9-stable",
+      "foss": "yes"
+    },
+    {
+      "name": "libtls-standalone",
+      "version": "2.7.4-r6",
+      "source-url": "https://git.alpinelinux.org/aports/tree/main/libtls-standalone/APKBUILD?h=3.9-stable",
+      "foss": "yes"
+    },
+    {
+      "name": "ssl_client",
+      "version": "1.29.3-r10",
+      "source-url": "https://git.alpinelinux.org/aports/tree/main/busybox/APKBUILD?h=3.9-stable",
+      "foss": "yes"
+    },
+    {
+      "name": "zlib",
+      "version": "1.2.11-r1",
+      "source-url": "https://git.alpinelinux.org/cgit/aports/tree/main/zlib/APKBUILD?h=3.9-stable",
+      "foss": "yes"
+    },
+    {
+      "name": "apk-tools",
+      "version": "2.10.3-r1",
+      "source-url": "https://git.alpinelinux.org/cgit/aports/tree/main/apk-tools/APKBUILD?h=3.9-stable",
+      "foss": "yes"
+    },
+    {
+      "name": "scanelf",
+      "version": "1.2.3-r0",
+      "source-url": "https://git.alpinelinux.org/aports/tree/main/pax-utils/APKBUILD?h=3.9-stable",
+      "foss": "yes"
+    },
+    {
+      "name": "musl-utils",
+      "version": "1.1.20-r3",
+      "source-url": "https://git.alpinelinux.org/aports/tree/main/musl/APKBUILD?h=3.9-stable",
+      "foss": "yes"
+    },
+    {
+      "name": "libc-utils",
+      "version": "0.7.1-r0",
+      "source-url": "https://git.alpinelinux.org/cgit/aports/tree/main/libc-dev/APKBUILD?h=3.9-stable",
+      "foss": "yes"
+    },
+    {
+      "name": "libbz2",
+      "version": "1.0.6-r6",
+      "source-url": "https://git.alpinelinux.org/cgit/aports/tree/main/bzip2/APKBUILD?h=3.9-stable",
+      "foss": "yes"
+    },
+    {
+      "name": "expat",
+      "version": "2.2.6-r0",
+      "source-url": "https://git.alpinelinux.org/cgit/aports/tree/main/expat/APKBUILD?h=3.9-stable",
+      "foss": "yes"
+    },
+    {
+      "name": "libffi",
+      "version": "3.2.1-r6",
+      "source-url": "https://git.alpinelinux.org/cgit/aports/tree/main/libffi/APKBUILD?h=3.9-stable",
+      "foss": "yes"
+    },
+    {
+      "name": "gdbm",
+      "version": "1.13-r1",
+      "source-url": "https://git.alpinelinux.org/cgit/aports/tree/main/gdbm/APKBUILD?h=3.9-stable",
+      "foss": "yes"
+    },
+    {
+      "name": "ncurses-terminfo-base",
+      "version": "6.1_p20190105-r0",
+      "source-url": "https://git.alpinelinux.org/aports/tree/main/ncurses/APKBUILD?h=3.9-stable",
+      "foss": "yes"
+    },
+    {
+      "name": "ncurses-terminfo",
+      "version": "6.1_p20190105-r0",
+      "source-url": "https://git.alpinelinux.org/aports/tree/main/ncurses/APKBUILD?h=3.9-stable",
+      "foss": "yes"
+    },
+    {
+      "name": "ncurses-libs",
+      "version": "6.1_p20190105-r0",
+      "source-url": "https://git.alpinelinux.org/aports/tree/main/ncurses/APKBUILD?h=3.9-stable",
+      "foss": "yes"
+    },
+    {
+      "name": "readline",
+      "version": "7.0.003-r1",
+      "source-url": "https://git.alpinelinux.org/cgit/aports/tree/main/readline/APKBUILD?h=3.9-stable",
+      "foss": "yes"
+    },
+    {
+      "name": "sqlite-libs",
+      "version": "3.26.0-r3",
+      "source-url": "https://git.alpinelinux.org/aports/tree/main/sqlite/APKBUILD?h=3.9-stable",
+      "foss": "yes"
+    },
+    {
+      "name": "python2",
+      "version": "2.7.15-r3",
+      "source-url": "https://git.alpinelinux.org/cgit/aports/tree/main/python2/APKBUILD?h=3.9-stable",
+      "foss": "yes"
+    },
+    {
+      "name": "py-setuptools",
+      "version": "40.6.3-r0",
+      "source-url": "https://git.alpinelinux.org/cgit/aports/tree/main/py-setuptools/APKBUILD?h=3.9-stable",
+      "foss": "yes"
+    },
+    {
+      "name": "py2-pip",
+      "version": "18.1-r0",
+      "source-url": "https://git.alpinelinux.org/cgit/aports/tree/main/py2-pip/APKBUILD?h=3.9-stable",
+      "foss": "yes"
+    },
+    {
+      "name": "sudo",
+      "version": "1.8.25_p1-r2",
+      "source-url": "https://git.alpinelinux.org/cgit/aports/tree/main/ca-certificates/APKBUILD?h=3.9-stable",
+      "foss": "yes"
+    },
+    {
+      "name": "libcap",
+      "version": "2.26-r0",
+      "source-url": "https://git.alpinelinux.org/cgit/aports/tree/main/dumb-init/APKBUILD?h=3.9-stable",
+      "foss": "yes"
+    },
+    {
+      "name": "dnsmasq",
+      "version": "2.80-r3",
+      "source-url": "https://git.alpinelinux.org/cgit/aports/tree/main/gmp/APKBUILD?h=3.9-stable",
+      "foss": "yes"
+    },
+    {
+      "name": "pip",
+      "version": "19.0.2",
+      "source-url": "https://github.com/pypa/pip/archive/19.0.2.tar.gz",
+      "foss": "yes"
+    },
+    {
+      "name": "setuptools",
+      "version": "40.6.3.post20190116",
+      "source-url": "https://github.com/pypa/setuptools/archive/v40.6.3.tar.gz",
+      "foss": "yes"
+    },
+    {
+      "name": "kubedns",
+      "version": "1.15.1",
+      "source-url": "https://github.com/kubernetes/dns/archive/1.15.1.tar.gz",
+      "foss": "yes"
+    }
+  ]
+}

diff --git a/rpmbuild.spec b/rpmbuild.spec
new file mode 100644 (file)
index 0000000..047e495
--- /dev/null
+++ b/rpmbuild.spec
@@ -0,0 +1,92 @@
+# Copyright 2019 Nokia
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+%define COMPONENT kubedns
+%define RPM_NAME caas-%{COMPONENT}
+%define RPM_MAJOR_VERSION 1.15.1
+%define RPM_MINOR_VERSION 1
+%define IMAGE_TAG %{RPM_MAJOR_VERSION}-%{RPM_MINOR_VERSION}
+
+Name:           %{RPM_NAME}
+Version:        %{RPM_MAJOR_VERSION}
+Release:        %{RPM_MINOR_VERSION}%{?dist}
+Summary:        Containers as a Service Kube DNS component
+License:        %{_platform_license} and Apache License and GNU Lesser General Public License v3.0 only and BSD 3-clause New or Revised License and MIT License and Common Development and Distribution License and BSD and GNU General Public License v2.0 only
+URL:            https://github.com/kubernetes/dns
+BuildArch:      x86_64
+Vendor:         %{_platform_vendor} and Kubernetes DNS service unmodified
+Source0:        %{name}-%{version}.tar.gz
+
+Requires: docker-ce >= 18.09.2
+BuildRequires: docker-ce >= 18.09.2
+
+%description
+This RPM contains the kubedns container image, and related deployment artifacts for the CaaS subsystem.
+
+%prep
+%autosetup
+
+%build
+# Building the container
+docker build \
+  --network=host \
+  --no-cache \
+  --force-rm \
+  --build-arg HTTP_PROXY="${http_proxy}" \
+  --build-arg HTTPS_PROXY="${https_proxy}" \
+  --build-arg NO_PROXY="${no_proxy}" \
+  --build-arg http_proxy="${http_proxy}" \
+  --build-arg https_proxy="${https_proxy}" \
+  --build-arg no_proxy="${no_proxy}" \
+  --build-arg KUBEDNS="%{RPM_MAJOR_VERSION}" \
+  --tag %{COMPONENT}:%{IMAGE_TAG} \
+  %{_builddir}/%{RPM_NAME}-%{RPM_MAJOR_VERSION}/docker-build/%{COMPONENT}/
+
+# Creating a new folder for the container tar file
+mkdir -p %{_builddir}/%{RPM_NAME}-%{RPM_MAJOR_VERSION}/docker-save/
+
+# Save the container
+docker save %{COMPONENT}:%{IMAGE_TAG} | gzip -c > %{_builddir}/%{RPM_NAME}-%{RPM_MAJOR_VERSION}/docker-save/%{COMPONENT}:%{IMAGE_TAG}.tar
+
+# Remove docker image
+docker rmi -f %{COMPONENT}:%{IMAGE_TAG}
+
+%install
+mkdir -p %{buildroot}/%{_caas_container_tar_path}/
+rsync -av %{_builddir}/%{RPM_NAME}-%{RPM_MAJOR_VERSION}/docker-save/%{COMPONENT}:%{IMAGE_TAG}.tar %{buildroot}/%{_caas_container_tar_path}/
+
+mkdir -p %{buildroot}/%{_playbooks_path}/
+rsync -av ansible/playbooks/kubedns.yaml %{buildroot}/%{_playbooks_path}/
+
+mkdir -p %{buildroot}/%{_roles_path}/
+rsync -av ansible/roles/kubedns %{buildroot}/%{_roles_path}/
+
+%files
+%{_caas_container_tar_path}/%{COMPONENT}:%{IMAGE_TAG}.tar
+%{_playbooks_path}/kubedns.yaml
+%{_roles_path}/kubedns
+
+%preun
+
+%post
+mkdir -p %{_postconfig_path}/
+ln -sf %{_playbooks_path}/kubedns.yaml %{_postconfig_path}/
+
+%postun
+if [ $1 -eq 0 ]; then
+    rm -f %{_postconfig_path}/kubedns.yaml
+fi
+
+%clean
+rm -rf ${buildroot}