k

Resource Monitoring using Metrics Server/Resource Monitoring using Metrics Server

@@ -0,0 +1,7 @@
+https://github.com/kubernetes/heapster deprecated
+
+
+
+Resource Monitoring using Metrics Server
+
+https://github.com/kubernetes/metrics

configmap/README.MD

@@ -0,0 +1,2 @@
+to create ConfigMap for nginx-app
+kubectl create configmap nginx-config --from-file=reverseproxy.conf

configmap/nginx-service.yml

@@ -4,7 +4,7 @@ metadata:
   name: helloworld-nginx-service
 spec:
   ports:
-  - port: 80
+  - port: 8080
     protocol: TCP
   selector:
     app: helloworld-nginx

configmap/nginx.yml

@@ -9,7 +9,7 @@ spec:
   - name: nginx
     image: nginx:1.11
     ports:
-    - containerPort: 80
+    - containerPort: 8080
     volumeMounts:
     - name: config-volume
       mountPath: /etc/nginx/conf.d

configmap/reverseproxy.conf

@@ -1,5 +1,5 @@
 server {
-    listen       80;
+    listen       8080;
     server_name  localhost;
 
     location / {

dashboard/ingress.yml

@@ -0,0 +1,34 @@
+apiVersion: extensions/v1beta1
+kind: Ingress
+metadata:
+  name: kubernetes-dashboard
+  namespace: kube-system
+  annotations:
+spec:
+  rules:
+  - host: dashboard.ktest.progressoft.com
+    http:
+      paths:
+      - path: /
+        backend:
+          serviceName: kubernetes-dashboard
+          servicePort: 443
+# apiVersion: extensions/v1beta1
+# kind: Ingress
+# metadata:
+#   name: tomcat
+#   namespace: tomcat
+#   annotations:
+#     # letsencrypt support enabled (https://github.com/jetstack/kube-lego)
+#     #kubernetes.io/tls-acme: "true"
+#     # use the Kubernetes ingress "nginx"
+#     #kubernetes.io/ingress.class: "nginx"
+# spec:
+#   rules:
+#   - host: tomcat.kjenkins.progressoft.com
+#     http:
+#       paths:
+#       - path: /
+#         backend:
+#           serviceName: tomcat-svc
+#           servicePort: 8080   

dashboard/kuberntes-dashboard.yml

@@ -0,0 +1,163 @@
+# 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 Secret ------------------- #
+
+apiVersion: v1
+kind: Secret
+metadata:
+  labels:
+    k8s-app: kubernetes-dashboard
+  name: kubernetes-dashboard-certs
+  namespace: kube-system
+type: Opaque
+
+---
+# ------------------- 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"]
+  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/v1beta2
+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:v1.10.0
+        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:
+  # type: NodePort
+  ports:
+    - port: 443
+      targetPort: 8443
+  selector:
+    k8s-app: kubernetes-dashboard

deployment/helloworld-secrets-volumes.yml

@@ -3,15 +3,15 @@ kind: Deployment
 metadata:
   name: helloworld-deployment
 spec:
-  replicas: 3
+  replicas: 2
   template:
     metadata:
       labels:
         app: helloworld
     spec:
       containers:
       - name: k8s-demo
-        image: wardviaene/k8s-demo
+        image: ammarqqqq/ammar
         ports:
         - name: nodejs-port
           containerPort: 3000

external-dns/external-dns.yaml

@@ -53,9 +53,9 @@ spec:
         args:
         - --source=service
         - --source=ingress
-        - --domain-filter=kubernetes.newtech.academy # will make ExternalDNS see only the hosted zones matching provided domain, omit to process all available hosted zones
+        - --domain-filter=dev.psamman.com # will make ExternalDNS see only the hosted zones matching provided domain, omit to process all available hosted zones
         - --provider=aws
         - --policy=upsert-only # would prevent ExternalDNS from deleting any records, omit to enable full synchronization
         - --aws-zone-type=public # only look at public hosted zones (valid values are public, private or no value for both)
         - --registry=txt
-        - --txt-owner-id=kubernetes.newtech.academy
+        - --txt-owner-id=dev.psamman.com

external-dns/ingress.yaml

@@ -5,14 +5,14 @@ metadata:
   name: helloworld-rules
 spec:
   rules:
-  - host: helloworld-v1.kubernetes.newtech.academy
+  - host: hello1.dev.psamman.com
     http:
       paths:
       - path: /
         backend:
           serviceName: helloworld-v1
           servicePort: 80
-  - host: helloworld-v2.kubernetes.newtech.academy
+  - host: hello2.dev.psamman.com
     http:
       paths:
       - path: /

external-dns/put-node-policy.sh

@@ -8,7 +8,7 @@
 DEFAULT_REGION="eu-west-1"
 AWS_REGION="${AWS_REGION:-${DEFAULT_REGION}}"
 
-NODE_ROLE="nodes.kubernetes.newtech.academy"
+NODE_ROLE="nodes.dev.psamman.com"
 
 export AWS_REGION
 

external-dns/service-l4.yaml

@@ -10,7 +10,7 @@ metadata:
     # Increase the ELB idle timeout to avoid issues with WebSockets or Server-Sent Events.
     service.beta.kubernetes.io/aws-load-balancer-connection-idle-timeout: '3600'
     # external-dns
-    external-dns.alpha.kubernetes.io/hostname: ingress.kubernetes.newtech.academy
+    external-dns.alpha.kubernetes.io/hostname: ingress.dev.psamman.com
 spec:
   type: LoadBalancer
   selector:

helm/demo-chart/README.md

@@ -14,3 +14,9 @@ helm install .
 ```
 helm upgrade --set image.tag=v0.0.2,mariadb.db.password=$DB_APP_PASS RELEASE .
 ```
+Initialize helm
+
+kubectl create helm-rbac.yml
+
+helm init --service-account tiller
+

helm/mychart/.helmignore

@@ -0,0 +1,21 @@
+# Patterns to ignore when building packages.
+# This supports shell glob matching, relative path matching, and
+# negation (prefixed with !). Only one pattern per line.
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj

helm/mychart/Chart.yaml

@@ -0,0 +1,5 @@
+apiVersion: v1
+appVersion: "1.0"
+description: A Helm chart for Kubernetes
+name: mychart
+version: 0.1.0

helm/mychart/templates/NOTES.txt

@@ -0,0 +1,19 @@
+1. Get the application URL by running these commands:
+{{- if .Values.ingress.enabled }}
+{{- range .Values.ingress.hosts }}
+  http{{ if $.Values.ingress.tls }}s{{ end }}://{{ . }}{{ $.Values.ingress.path }}
+{{- end }}
+{{- else if contains "NodePort" .Values.service.type }}
+  export NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ template "mychart.fullname" . }})
+  export NODE_IP=$(kubectl get nodes --namespace {{ .Release.Namespace }} -o jsonpath="{.items[0].status.addresses[0].address}")
+  echo http://$NODE_IP:$NODE_PORT
+{{- else if contains "LoadBalancer" .Values.service.type }}
+     NOTE: It may take a few minutes for the LoadBalancer IP to be available.
+           You can watch the status of by running 'kubectl get svc -w {{ template "mychart.fullname" . }}'
+  export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ template "mychart.fullname" . }} -o jsonpath='{.status.loadBalancer.ingress[0].ip}')
+  echo http://$SERVICE_IP:{{ .Values.service.port }}
+{{- else if contains "ClusterIP" .Values.service.type }}
+  export POD_NAME=$(kubectl get pods --namespace {{ .Release.Namespace }} -l "app={{ template "mychart.name" . }},release={{ .Release.Name }}" -o jsonpath="{.items[0].metadata.name}")
+  echo "Visit http://127.0.0.1:8080 to use your application"
+  kubectl port-forward $POD_NAME 8080:80
+{{- end }}

helm/mychart/templates/_helpers.tpl

@@ -0,0 +1,32 @@
+{{/* vim: set filetype=mustache: */}}
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "mychart.name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Create a default fully qualified app name.
+We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+If release name contains chart name it will be used as a full name.
+*/}}
+{{- define "mychart.fullname" -}}
+{{- if .Values.fullnameOverride -}}
+{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" -}}
+{{- else -}}
+{{- $name := default .Chart.Name .Values.nameOverride -}}
+{{- if contains $name .Release.Name -}}
+{{- .Release.Name | trunc 63 | trimSuffix "-" -}}
+{{- else -}}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Create chart name and version as used by the chart label.
+*/}}
+{{- define "mychart.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
+{{- end -}}