diff options
Diffstat (limited to 'roles/kubernetes/kubeadm/master')
7 files changed, 450 insertions, 5 deletions
diff --git a/roles/kubernetes/kubeadm/master/tasks/net_kube-router.yml b/roles/kubernetes/kubeadm/master/tasks/net_kube-router.yml new file mode 100644 index 00000000..5368b6f5 --- /dev/null +++ b/roles/kubernetes/kubeadm/master/tasks/net_kube-router.yml @@ -0,0 +1,10 @@ +--- +- name: generate kube-router configuration + template: + src: "net_kube-router/config.{{ kubernetes_network_plugin_version }}.yml.j2" + dest: /etc/kubernetes/network-plugin.yml + +- name: install kube-router on to the cluster + command: kubectl --kubeconfig /etc/kubernetes/admin.conf apply -f /etc/kubernetes/network-plugin.yml + register: kube_router_apply_result + changed_when: (kube_router_apply_result.stdout_lines | reject("regex", " unchanged$") | list | length) > 0 diff --git a/roles/kubernetes/kubeadm/master/tasks/net_kubeguard.yml b/roles/kubernetes/kubeadm/master/tasks/net_kubeguard.yml new file mode 100644 index 00000000..f364fb5f --- /dev/null +++ b/roles/kubernetes/kubeadm/master/tasks/net_kubeguard.yml @@ -0,0 +1,13 @@ +--- +- name: install kube-router variant + when: "kubernetes_network_plugin_variant == 'with-kube-router'" + block: + - name: generate kubeguard (kube-router) configuration + template: + src: "net_kubeguard/kube-router.{{ kubernetes_network_plugin_version }}.yml.j2" + dest: /etc/kubernetes/network-plugin.yml + + - name: install kubeguard (kube-router) on to the cluster + command: kubectl --kubeconfig /etc/kubernetes/admin.conf apply -f /etc/kubernetes/network-plugin.yml + register: kubeguard_apply_result + changed_when: (kubeguard_apply_result.stdout_lines | reject("regex", " unchanged$") | list | length) > 0 diff --git a/roles/kubernetes/kubeadm/master/tasks/net_none.yml b/roles/kubernetes/kubeadm/master/tasks/net_none.yml new file mode 100644 index 00000000..bf1a16d5 --- /dev/null +++ b/roles/kubernetes/kubeadm/master/tasks/net_none.yml @@ -0,0 +1,2 @@ +--- +## this "plugin" is for testing purposes only diff --git a/roles/kubernetes/kubeadm/master/tasks/primary-master.yml b/roles/kubernetes/kubeadm/master/tasks/primary-master.yml index f24e9ac1..432f7479 100644 --- a/roles/kubernetes/kubeadm/master/tasks/primary-master.yml +++ b/roles/kubernetes/kubeadm/master/tasks/primary-master.yml @@ -27,8 +27,8 @@ - name: initialize kubernetes master and store log block: - name: initialize kubernetes master - command: "kubeadm init --config /etc/kubernetes/kubeadm.config --node-name {{ inventory_hostname }}{% if kubernetes_cri_socket %} --cri-socket {{ kubernetes_cri_socket }}{% endif %}{% if kubernetes_network_plugin == 'kube-router' %} --skip-phases addon/kube-proxy{% endif %} --skip-token-print" - # command: "kubeadm init --config /etc/kubernetes/kubeadm.config{% if kubernetes_cri_socket %} --cri-socket {{ kubernetes_cri_socket }}{% endif %}{% if kubernetes_network_plugin == 'kube-router' %} --skip-phases addon/kube-proxy{% endif %} --token '{{ kubeadm_token_generate.stdout }}' --token-ttl 42m --skip-token-print" + command: "kubeadm init --config /etc/kubernetes/kubeadm.config --node-name {{ inventory_hostname }}{% if kubernetes_cri_socket %} --cri-socket {{ kubernetes_cri_socket }}{% endif %}{% if kubernetes_network_plugin_replaces_kube_proxy %} --skip-phases addon/kube-proxy{% endif %} --skip-token-print" + # command: "kubeadm init --config /etc/kubernetes/kubeadm.config{% if kubernetes_cri_socket %} --cri-socket {{ kubernetes_cri_socket }}{% endif %}{% if kubernetes_network_plugin_replaces_kube_proxy %} --skip-phases addon/kube-proxy{% endif %} --token '{{ kubeadm_token_generate.stdout }}' --token-ttl 42m --skip-token-print" args: creates: /etc/kubernetes/pki/ca.crt register: kubeadm_init @@ -40,6 +40,12 @@ content: "{{ kubeadm_init.stdout }}\n" dest: /etc/kubernetes/kubeadm-init.log + - name: dump error output of kubeadm init to log file + when: kubeadm_init.changed and kubeadm_init.stderr + copy: + content: "{{ kubeadm_init.stderr }}\n" + dest: /etc/kubernetes/kubeadm-init.errors + - name: create bootstrap token for existing cluster command: kubeadm token create --ttl 42m check_mode: no @@ -119,5 +125,5 @@ ## Network Plugin -# - name: install network plugin -# include_tasks: "net_{{ kubernetes_network_plugin }}.yml" +- name: install network plugin + include_tasks: "net_{{ kubernetes_network_plugin }}.yml" diff --git a/roles/kubernetes/kubeadm/master/tasks/secondary-masters.yml b/roles/kubernetes/kubeadm/master/tasks/secondary-masters.yml index 31fb31d6..610a8d3f 100644 --- a/roles/kubernetes/kubeadm/master/tasks/secondary-masters.yml +++ b/roles/kubernetes/kubeadm/master/tasks/secondary-masters.yml @@ -28,7 +28,7 @@ - name: join kubernetes secondary master node and store log block: - name: join kubernetes secondary master node - throttle: 1 ## TODO test this! + throttle: 1 command: "kubeadm join 127.0.0.1:6443 --node-name {{ inventory_hostname }} --apiserver-bind-port 6442{% if kubernetes_overlay_node_ip is defined %} --apiserver-advertise-address {{ kubernetes_overlay_node_ip }}{% endif %}{% if kubernetes_cri_socket %} --cri-socket {{ kubernetes_cri_socket }}{% endif %} --token '{{ kube_bootstrap_token }}' --discovery-token-ca-cert-hash '{{ kube_bootstrap_ca_cert_hash }}' --control-plane --certificate-key {{ kubeadm_upload_certs_key }}" args: creates: /etc/kubernetes/kubelet.conf @@ -42,6 +42,12 @@ content: "{{ kubeadm_join.stdout }}\n" dest: /etc/kubernetes/kubeadm-join.log + - name: dump error output of kubeadm join to log file + when: kubeadm_join.changed and kubeadm_join.stderr + copy: + content: "{{ kubeadm_join.stderr }}\n" + dest: /etc/kubernetes/kubeadm-join.errors + # TODO: acutally check if node has registered - name: give the new master(s) a moment to register when: kubeadm_join is changed diff --git a/roles/kubernetes/kubeadm/master/templates/net_kube-router/config.0.4.0.yml.j2 b/roles/kubernetes/kubeadm/master/templates/net_kube-router/config.0.4.0.yml.j2 new file mode 100644 index 00000000..b06687d5 --- /dev/null +++ b/roles/kubernetes/kubeadm/master/templates/net_kube-router/config.0.4.0.yml.j2 @@ -0,0 +1,237 @@ +apiVersion: v1 +kind: ConfigMap +metadata: + name: kube-router-kubeconfig + namespace: kube-system + labels: + tier: node + k8s-app: kube-router +data: + kubeconfig.conf: | + apiVersion: v1 + kind: Config + clusters: + - cluster: + certificate-authority: /var/run/secrets/kubernetes.io/serviceaccount/ca.crt + server: https://127.0.0.1:{{ kubernetes_api_lb_port | default('6443') }} + name: default + contexts: + - context: + cluster: default + namespace: default + user: default + name: default + current-context: default + users: + - name: default + user: + tokenFile: /var/run/secrets/kubernetes.io/serviceaccount/token +--- +apiVersion: v1 +kind: ConfigMap +metadata: + name: kube-router-cfg + namespace: kube-system + labels: + tier: node + k8s-app: kube-router +data: + cni-conf.json: | + { + "cniVersion":"0.3.0", + "name":"mynet", + "plugins":[ + { + "name":"kubernetes", + "type":"bridge", + "bridge":"kube-bridge", + "isDefaultGateway":true, + "hairpinMode": true, + "ipam":{ + "type":"host-local" + } + }, + { + "type":"portmap", + "capabilities":{ + "snat":true, + "portMappings":true + } + } + ] + } +--- +apiVersion: apps/v1 +kind: DaemonSet +metadata: + labels: + k8s-app: kube-router + tier: node + name: kube-router + namespace: kube-system +spec: + selector: + matchLabels: + k8s-app: kube-router + tier: node + template: + metadata: + labels: + k8s-app: kube-router + tier: node + annotations: + prometheus.io/scrape: "true" + prometheus.io/port: "8080" + spec: + priorityClassName: system-node-critical + serviceAccountName: kube-router + serviceAccount: kube-router + containers: + - name: kube-router + image: docker.io/cloudnativelabs/kube-router:v{{ kubernetes_network_plugin_version }} + imagePullPolicy: Always + args: + - --run-router=true + - --run-firewall=true + - --run-service-proxy={{ kubernetes_network_plugin_replaces_kube_proxy | string | lower }} + - --kubeconfig=/var/lib/kube-router/kubeconfig + - --hairpin-mode + - --iptables-sync-period=10s + - --ipvs-sync-period=10s + - --routes-sync-period=10s + env: + - name: NODE_NAME + valueFrom: + fieldRef: + fieldPath: spec.nodeName + - name: KUBE_ROUTER_CNI_CONF_FILE + value: /etc/cni/net.d/10-kuberouter.conflist + livenessProbe: + httpGet: + path: /healthz + port: 20244 + initialDelaySeconds: 10 + periodSeconds: 3 + resources: + requests: + cpu: 250m + memory: 250Mi + securityContext: + privileged: true + volumeMounts: + - name: lib-modules + mountPath: /lib/modules + readOnly: true + - name: cni-conf-dir + mountPath: /etc/cni/net.d + - name: kubeconfig + mountPath: /var/lib/kube-router + readOnly: true + - name: xtables-lock + mountPath: /run/xtables.lock + readOnly: false + initContainers: + - name: install-cni + image: busybox + imagePullPolicy: Always + command: + - /bin/sh + - -c + - set -e -x; + if [ ! -f /etc/cni/net.d/10-kuberouter.conflist ]; then + if [ -f /etc/cni/net.d/*.conf ]; then + rm -f /etc/cni/net.d/*.conf; + fi; + TMP=/etc/cni/net.d/.tmp-kuberouter-cfg; + cp /etc/kube-router/cni-conf.json ${TMP}; + mv ${TMP} /etc/cni/net.d/10-kuberouter.conflist; + fi + volumeMounts: + - name: cni-conf-dir + mountPath: /etc/cni/net.d + - name: kube-router-cfg + mountPath: /etc/kube-router + hostNetwork: true + tolerations: + - key: CriticalAddonsOnly + operator: Exists + - effect: NoSchedule + key: node-role.kubernetes.io/master + operator: Exists + - effect: NoSchedule + key: node.kubernetes.io/not-ready + operator: Exists + volumes: + - name: lib-modules + hostPath: + path: /lib/modules + - name: cni-conf-dir + hostPath: + path: /etc/cni/net.d + - name: kube-router-cfg + configMap: + name: kube-router-cfg + - name: kubeconfig + configMap: + name: kube-router-kubeconfig + items: + - key: kubeconfig.conf + path: kubeconfig + - name: xtables-lock + hostPath: + path: /run/xtables.lock + type: FileOrCreate +--- +apiVersion: v1 +kind: ServiceAccount +metadata: + name: kube-router + namespace: kube-system +--- +kind: ClusterRole +apiVersion: rbac.authorization.k8s.io/v1beta1 +metadata: + name: kube-router + namespace: kube-system +rules: + - apiGroups: + - "" + resources: + - namespaces + - pods + - services + - nodes + - endpoints + verbs: + - list + - get + - watch + - apiGroups: + - "networking.k8s.io" + resources: + - networkpolicies + verbs: + - list + - get + - watch + - apiGroups: + - extensions + resources: + - networkpolicies + verbs: + - get + - list + - watch +--- +kind: ClusterRoleBinding +apiVersion: rbac.authorization.k8s.io/v1beta1 +metadata: + name: kube-router +roleRef: + apiGroup: rbac.authorization.k8s.io + kind: ClusterRole + name: kube-router +subjects: +- kind: ServiceAccount + name: kube-router + namespace: kube-system diff --git a/roles/kubernetes/kubeadm/master/templates/net_kubeguard/kube-router.0.4.0.yml.j2 b/roles/kubernetes/kubeadm/master/templates/net_kubeguard/kube-router.0.4.0.yml.j2 new file mode 100644 index 00000000..51bfdaae --- /dev/null +++ b/roles/kubernetes/kubeadm/master/templates/net_kubeguard/kube-router.0.4.0.yml.j2 @@ -0,0 +1,171 @@ +apiVersion: v1 +kind: ConfigMap +metadata: + name: kube-router-kubeconfig + namespace: kube-system + labels: + tier: node + k8s-app: kube-router +data: + kubeconfig.conf: | + apiVersion: v1 + kind: Config + clusters: + - cluster: + certificate-authority: /var/run/secrets/kubernetes.io/serviceaccount/ca.crt + server: https://127.0.0.1:{{ kubernetes_api_lb_port | default('6443') }} + name: default + contexts: + - context: + cluster: default + namespace: default + user: default + name: default + current-context: default + users: + - name: default + user: + tokenFile: /var/run/secrets/kubernetes.io/serviceaccount/token +--- +apiVersion: apps/v1 +kind: DaemonSet +metadata: + labels: + k8s-app: kube-router + tier: node + name: kube-router + namespace: kube-system +spec: + selector: + matchLabels: + k8s-app: kube-router + tier: node + template: + metadata: + labels: + k8s-app: kube-router + tier: node + annotations: + prometheus.io/scrape: "true" + prometheus.io/port: "8080" + spec: + priorityClassName: system-node-critical + serviceAccountName: kube-router + serviceAccount: kube-router + containers: + - name: kube-router + image: docker.io/cloudnativelabs/kube-router:v{{ kubernetes_network_plugin_version }} + imagePullPolicy: Always + args: + - --run-router=false + - --run-firewall=true + - --run-service-proxy={{ kubernetes_network_plugin_replaces_kube_proxy | string | lower }} + - --kubeconfig=/var/lib/kube-router/kubeconfig + - --hairpin-mode + - --iptables-sync-period=10s + - --ipvs-sync-period=10s + env: + - name: NODE_NAME + valueFrom: + fieldRef: + fieldPath: spec.nodeName + livenessProbe: + httpGet: + path: /healthz + port: 20244 + initialDelaySeconds: 10 + periodSeconds: 3 + resources: + requests: + cpu: 250m + memory: 250Mi + securityContext: + privileged: true + volumeMounts: + - name: lib-modules + mountPath: /lib/modules + readOnly: true + - name: kubeconfig + mountPath: /var/lib/kube-router + readOnly: true + - name: xtables-lock + mountPath: /run/xtables.lock + readOnly: false + hostNetwork: true + tolerations: + - key: CriticalAddonsOnly + operator: Exists + - effect: NoSchedule + key: node-role.kubernetes.io/master + operator: Exists + - effect: NoSchedule + key: node.kubernetes.io/not-ready + operator: Exists + volumes: + - name: lib-modules + hostPath: + path: /lib/modules + - name: kubeconfig + configMap: + name: kube-router-kubeconfig + items: + - key: kubeconfig.conf + path: kubeconfig + - name: xtables-lock + hostPath: + path: /run/xtables.lock + type: FileOrCreate +--- +apiVersion: v1 +kind: ServiceAccount +metadata: + name: kube-router + namespace: kube-system +--- +kind: ClusterRole +apiVersion: rbac.authorization.k8s.io/v1beta1 +metadata: + name: kube-router + namespace: kube-system +rules: + - apiGroups: + - "" + resources: + - namespaces + - pods + - services + - nodes + - endpoints + verbs: + - list + - get + - watch + - apiGroups: + - "networking.k8s.io" + resources: + - networkpolicies + verbs: + - list + - get + - watch + - apiGroups: + - extensions + resources: + - networkpolicies + verbs: + - get + - list + - watch +--- +kind: ClusterRoleBinding +apiVersion: rbac.authorization.k8s.io/v1beta1 +metadata: + name: kube-router +roleRef: + apiGroup: rbac.authorization.k8s.io + kind: ClusterRole + name: kube-router +subjects: +- kind: ServiceAccount + name: kube-router + namespace: kube-system |