From 67acfb594844515aa07f5d292f334a93ab92f0a2 Mon Sep 17 00:00:00 2001 From: Petr Ospalý Date: Sat, 20 Apr 2019 05:25:23 +0200 Subject: Add kubernetes dashboard MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Either run kubectl proxy, but you must setup routes or kubectl on some node (only infra has kubectl by default). Another option is connecting onto the node where the dashboard is exposed via NodePort. Instructions are here: https://github.com/kubernetes/dashboard/wiki/Accessing-dashboard (1.7.X and above) Change-Id: I5a28f458c0ae949278b1e6eaf6eb063d09f93fc0 Issue-ID: OOM-1778 Signed-off-by: Petr Ospalý Signed-off-by: Michal Zegan --- ansible/roles/rke/defaults/main.yml | 2 + ansible/roles/rke/tasks/rke_config.yml | 10 ++ ansible/roles/rke/templates/cluster.yml.j2 | 4 +- .../roles/rke/templates/k8s-dashboard-user.yml.j2 | 19 +++ .../rke/templates/kubernetes-dashboard.yaml.j2 | 178 +++++++++++++++++++++ 5 files changed, 212 insertions(+), 1 deletion(-) create mode 100644 ansible/roles/rke/templates/k8s-dashboard-user.yml.j2 create mode 100644 ansible/roles/rke/templates/kubernetes-dashboard.yaml.j2 (limited to 'ansible/roles/rke') diff --git a/ansible/roles/rke/defaults/main.yml b/ansible/roles/rke/defaults/main.yml index cbf03b74..88216857 100644 --- a/ansible/roles/rke/defaults/main.yml +++ b/ansible/roles/rke/defaults/main.yml @@ -4,6 +4,8 @@ rke_username: rke rke_bin_dir: /usr/local/bin kube_config_dir: "{{ ansible_env.HOME }}/.kube" cluster_config_dir: "{{ app_data_path }}/cluster" +# Whether dashboard is exposed. +rke_dashboard_exposed: true rke: # rke (rancher) images etcd: rancher/coreos-etcd:v3.2.24-rancher1 diff --git a/ansible/roles/rke/tasks/rke_config.yml b/ansible/roles/rke/tasks/rke_config.yml index 49503192..4112e107 100644 --- a/ansible/roles/rke/tasks/rke_config.yml +++ b/ansible/roles/rke/tasks/rke_config.yml @@ -38,6 +38,16 @@ src: cluster.yml.j2 dest: "{{ cluster_config_dir }}/cluster.yml" +- name: Prepare rke addon manifest (dashboard) + template: + src: kubernetes-dashboard.yaml.j2 + dest: "{{ cluster_config_dir }}/kubernetes-dashboard.yml" + +- name: Prepare rke addon manifest (dashboard user) + template: + src: k8s-dashboard-user.yml.j2 + dest: "{{ cluster_config_dir }}/k8s-dashboard-user.yml" + - name: Install rke cli tool copy: src: "{{ app_data_path }}/downloads/{{ rke_binary }}" diff --git a/ansible/roles/rke/templates/cluster.yml.j2 b/ansible/roles/rke/templates/cluster.yml.j2 index d55a486c..64508e6f 100644 --- a/ansible/roles/rke/templates/cluster.yml.j2 +++ b/ansible/roles/rke/templates/cluster.yml.j2 @@ -80,7 +80,9 @@ authentication: sans: [] webhook: null addons: "" -addons_include: [] +addons_include: +- "{{ cluster_config_dir }}/kubernetes-dashboard.yml" +- "{{ cluster_config_dir }}/k8s-dashboard-user.yml" system_images: etcd: "{{ rke.etcd }}" alpine: "{{ rke.alpine }}" diff --git a/ansible/roles/rke/templates/k8s-dashboard-user.yml.j2 b/ansible/roles/rke/templates/k8s-dashboard-user.yml.j2 new file mode 100644 index 00000000..9031553c --- /dev/null +++ b/ansible/roles/rke/templates/k8s-dashboard-user.yml.j2 @@ -0,0 +1,19 @@ +--- +apiVersion: v1 +kind: ServiceAccount +metadata: + name: admin-user + namespace: kube-system +--- +apiVersion: rbac.authorization.k8s.io/v1beta1 +kind: ClusterRoleBinding +metadata: + name: admin-user +roleRef: + apiGroup: rbac.authorization.k8s.io + kind: ClusterRole + name: cluster-admin +subjects: +- kind: ServiceAccount + name: admin-user + namespace: kube-system \ No newline at end of file diff --git a/ansible/roles/rke/templates/kubernetes-dashboard.yaml.j2 b/ansible/roles/rke/templates/kubernetes-dashboard.yaml.j2 new file mode 100644 index 00000000..4458628a --- /dev/null +++ b/ansible/roles/rke/templates/kubernetes-dashboard.yaml.j2 @@ -0,0 +1,178 @@ +# Copyright 2017 The Kubernetes Authors. +# +# 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. + +# ------------------- Dashboard Secrets ------------------- # + +apiVersion: v1 +kind: Secret +metadata: + labels: + k8s-app: kubernetes-dashboard + name: kubernetes-dashboard-certs + namespace: kube-system +type: Opaque + +--- + +apiVersion: v1 +kind: Secret +metadata: + labels: + k8s-app: kubernetes-dashboard + name: kubernetes-dashboard-csrf + namespace: kube-system +type: Opaque +data: + csrf: "" + +--- +# ------------------- Dashboard Service Account ------------------- # + +apiVersion: v1 +kind: ServiceAccount +metadata: + labels: + k8s-app: kubernetes-dashboard + name: kubernetes-dashboard + namespace: kube-system + +--- +# ------------------- Dashboard Role & Role Binding ------------------- # + +kind: Role +apiVersion: rbac.authorization.k8s.io/v1 +metadata: + name: kubernetes-dashboard-minimal + namespace: kube-system +rules: + # Allow Dashboard to create 'kubernetes-dashboard-key-holder' secret. +- apiGroups: [""] + resources: ["secrets"] + verbs: ["create"] + # Allow Dashboard to create 'kubernetes-dashboard-settings' config map. +- apiGroups: [""] + resources: ["configmaps"] + verbs: ["create"] + # Allow Dashboard to get, update and delete Dashboard exclusive secrets. +- apiGroups: [""] + resources: ["secrets"] + resourceNames: ["kubernetes-dashboard-key-holder", "kubernetes-dashboard-certs", "kubernetes-dashboard-csrf"] + verbs: ["get", "update", "delete"] + # Allow Dashboard to get and update 'kubernetes-dashboard-settings' config map. +- apiGroups: [""] + resources: ["configmaps"] + resourceNames: ["kubernetes-dashboard-settings"] + verbs: ["get", "update"] + # Allow Dashboard to get metrics from heapster. +- apiGroups: [""] + resources: ["services"] + resourceNames: ["heapster"] + verbs: ["proxy"] +- apiGroups: [""] + resources: ["services/proxy"] + resourceNames: ["heapster", "http:heapster:", "https:heapster:"] + verbs: ["get"] + +--- +apiVersion: rbac.authorization.k8s.io/v1 +kind: RoleBinding +metadata: + name: kubernetes-dashboard-minimal + namespace: kube-system +roleRef: + apiGroup: rbac.authorization.k8s.io + kind: Role + name: kubernetes-dashboard-minimal +subjects: +- kind: ServiceAccount + name: kubernetes-dashboard + namespace: kube-system + +--- +# ------------------- Dashboard Deployment ------------------- # + +kind: Deployment +apiVersion: apps/v1 +metadata: + labels: + k8s-app: kubernetes-dashboard + name: kubernetes-dashboard + namespace: kube-system +spec: + replicas: 1 + revisionHistoryLimit: 10 + selector: + matchLabels: + k8s-app: kubernetes-dashboard + template: + metadata: + labels: + k8s-app: kubernetes-dashboard + spec: + containers: + - name: kubernetes-dashboard + image: k8s.gcr.io/kubernetes-dashboard-amd64:v1.10.1 + ports: + - containerPort: 8443 + protocol: TCP + args: + - --auto-generate-certificates + # Uncomment the following line to manually specify Kubernetes API server Host + # If not specified, Dashboard will attempt to auto discover the API server and connect + # to it. Uncomment only if the default does not work. + # - --apiserver-host=http://my-address:port + volumeMounts: + - name: kubernetes-dashboard-certs + mountPath: /certs + # Create on-disk volume to store exec logs + - mountPath: /tmp + name: tmp-volume + livenessProbe: + httpGet: + scheme: HTTPS + path: / + port: 8443 + initialDelaySeconds: 30 + timeoutSeconds: 30 + volumes: + - name: kubernetes-dashboard-certs + secret: + secretName: kubernetes-dashboard-certs + - name: tmp-volume + emptyDir: {} + serviceAccountName: kubernetes-dashboard + # Comment the following tolerations if Dashboard must not be deployed on master + tolerations: + - key: node-role.kubernetes.io/master + effect: NoSchedule + +--- +# ------------------- Dashboard Service ------------------- # + +kind: Service +apiVersion: v1 +metadata: + labels: + k8s-app: kubernetes-dashboard + name: kubernetes-dashboard + namespace: kube-system +spec: + ports: + - port: 443 + targetPort: 8443 + selector: + k8s-app: kubernetes-dashboard +{% if rke_dashboard_exposed %} + type: NodePort +{% endif %} -- cgit 1.2.3-korg