initial commit

helm-webapp/.helmignore

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+# 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
+*.orig
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/

helm-webapp/Chart.yaml

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+apiVersion: v2
+name: webapp
+description: A Helm chart for Kubernetes
+
+# A chart can be either an 'application' or a 'library' chart.
+#
+# Application charts are a collection of templates that can be packaged into versioned archives
+# to be deployed.
+#
+# Library charts provide useful utilities or functions for the chart developer. They're included as
+# a dependency of application charts to inject those utilities and functions into the rendering
+# pipeline. Library charts do not define any templates and therefore cannot be deployed.
+type: application
+
+# This is the chart version. This version number should be incremented each time you make changes
+# to the chart and its templates, including the app version.
+# Versions are expected to follow Semantic Versioning (https://semver.org/)
+version: 0.1.0
+
+# This is the version number of the application being deployed. This version number should be
+# incremented each time you make changes to the application. Versions are not expected to
+# follow Semantic Versioning. They should reflect the version the application is using.
+# It is recommended to use it with quotes.
+appVersion: "1.16.0"

helm-webapp/templates/NOTES.txt

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+servicename=$(k get service -l "app={{ .Values.appName }}" -o jsonpath="{.items[0].metadata.name}")
+kubectl --namespace <namespace> port-forward service/{{ .Values.appName }} 8888:80

helm-webapp/templates/configmap.yaml

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+kind: ConfigMap 
+apiVersion: v1 
+metadata:
+  name: {{ .Values.configmap.name }}
+data:
+  BG_COLOR: '#12181b'
+  FONT_COLOR: '#FFFFFF'
+  CUSTOM_HEADER: {{ .Values.configmap.data.CUSTOM_HEADER }}

helm-webapp/templates/deployment.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ .Values.appName }}
+  labels:
+    app: {{ .Values.appName }}
+spec:
+  replicas: {{ .Values.replicas }}
+  selector:
+    matchLabels:
+      app: {{ .Values.appName }}
+      tier: frontend
+  template:
+    metadata:
+      labels:
+        app: {{ .Values.appName }}
+        tier: frontend
+    spec: # Pod spec
+      containers:
+      - name: mycontainer
+        image: "{{ .Values.image.name }}:{{ .Values.image.tag }}"
+        ports:
+        - containerPort: 80
+        envFrom:
+        - configMapRef:
+            name: {{ .Values.configmap.name }}
+        resources:
+          requests:
+            memory: "16Mi" 
+            cpu: "50m"    # 500milliCPUs (1/2 CPU)
+          limits:
+            memory: "128Mi"
+            cpu: "100m"

helm-webapp/templates/service.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ .Values.appName }}
+  labels:
+    app: {{ .Values.appName }}
+spec:
+  ports:
+  - port: 80
+    protocol: TCP
+    name: flask
+  selector:
+    app: {{ .Values.appName }}
+    tier: frontend
+  type: NodePort

helm-webapp/values-dev.yaml

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+
+replicas: 5
+
+configmap:
+  data:
+    CUSTOM_HEADER: 'This is on the DEV environment!'

helm-webapp/values-prod.yaml

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+
+replicas: 4
+
+configmap:
+  data:
+    CUSTOM_HEADER: 'This is on the PROD environment!'

helm-webapp/values.yaml

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+appName: myhelmapp
+
+port: 80
+
+configmap:
+  name: myhelmapp-configmap-v1
+  data:
+    CUSTOM_HEADER: 'This app was deployed with helm!'
+
+image:
+  name: devopsjourney1/mywebapp
+  tag: latest

kustom-webapp/README.md

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+# Installation
+```
+kubectl version
+```
+*If you have 1.21 or above of kubectl you will have access to kubectl kustomize which is the recommended method. If you aren't on version 1.21 or above, upgrade kubectl.
+*You could also download/use the 'kutomize' binary seperatly but the cmds are different.
+
+
+# Viewing Kustomize Configs - (Using kubectl kustomize integration)
+```
+kubectl kustomize .
+kubectl kustomize overlays/dev/
+kubectl kustomize overlays/prod/
+```
+
+# Applying Kustomize Configs - (Using kubectl kustomize integration)
+```
+kubectl apply -k .
+kubectl apply -k overlays/dev/
+kubectl apply -k overlays/prod/
+```
+Note: if you get field is immutable error, check your configuration and try deleting the resources.
+
+
+# Creating Namespaces if you dont have them already
+```
+kubectl create namespace dev; kubectl create namespace prod;
+```
+
+
+# Accessing the application
+```
+minikube service kustom-mywebapp-v1
+minikube service kustom-mywebapp-v1 -n dev
+minikube service kustom-mywebapp-v1 -n prod
+```
+
+# References:
+https://github.com/kubernetes-sigs/kustomize/blob/master/README.md
+https://kubectl.docs.kubernetes.io/guides/config_management/offtheshelf/

kustom-webapp/base/deployment.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: mywebapp
+spec:
+  replicas: 1
+  template:
+    spec: # Pod spec
+      containers:
+      - name: mycontainer
+        image: "devopsjourney1/mywebapp:latest"
+        ports:
+        - containerPort: 80
+        envFrom:
+        - configMapRef:
+            name: mykustom-map
+        resources:
+          requests:
+            memory: "16Mi" 
+            cpu: "50m"    # 500milliCPUs (1/2 CPU)
+          limits:
+            memory: "128Mi"
+            cpu: "100m"

kustom-webapp/base/kustomization.yaml

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+resources:
+- deployment.yaml
+- service.yaml
+
+commonLabels:
+  app: kustomwebapp
+
+commonAnnotations:
+  app: mykustom-annontations
+
+namePrefix:
+  kustom-
+
+nameSuffix:
+  -v1

kustom-webapp/base/service.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  name: mywebapp
+spec:
+  ports:
+  - port: 80
+    protocol: TCP
+    name: flask
+  type: NodePort

kustom-webapp/overlays/dev/config.properties

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+BG_COLOR=#000000
+FONT_COLOR=#FFFFFF
+CUSTOM_HEADER=Welcome to the DEV environment!!

kustom-webapp/overlays/dev/kustomization.yaml

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+bases:
+- ../../base
+
+patches:
+ - replicas.yaml
+
+configMapGenerator:
+- name: mykustom-map
+  env: config.properties

kustom-webapp/overlays/dev/replicas.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: mywebapp
+spec:
+  replicas: 3

kustom-webapp/overlays/prod/config.properties

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+BG_COLOR=#12181b
+FONT_COLOR=#FFFFFF
+CUSTOM_HEADER=Welcome to the Prod environment!!

kustom-webapp/overlays/prod/kustomization.yaml

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+bases:
+- ../../base
+
+patches:
+ - replicas.yaml
+
+configMapGenerator:
+- name: mykustom-map
+  env: config.properties

kustom-webapp/overlays/prod/replicas.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: mywebapp
+spec:
+  replicas: 4

readme.md

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+
+
+# Follow this video to be a ArgoCD Boss
+https://youtu.be/JLrR9RV9AFA
+
+
+# Installing latest/stable version of ArgoCD
+```
+kubectl create namespace argocd
+kubectl apply -n argocd -f https://raw.githubusercontent.com/argoproj/argo-cd/stable/manifests/install.yaml
+```
+
+### Forward Ports
+```
+k get services -n argocd
+kubectl port-forward service/argocd-server -n argocd 8080:443
+```
+
+### Get Credentials
+```
+kubectl -n argocd get secret argocd-initial-admin-secret -o jsonpath="{.data.password}" | base64 -d
+```
+
+# Install ArgoCD CLI / Login via CLI
+```
+brew install argocd
+kubectl port-forward svc/argocd-server -n argocd 8080:443
+argocd login 127.0.0.1:8080
+```
+
+# Creating an Application using ArgoCD CLI:
+```
+argocd app create webapp-kustom-prod \
+--repo https://github.com/devopsjourney1/argo-examples.git \
+--path kustom-webapp/overlays/prod --dest-server https://kubernetes.default.svc \
+--dest-namespace prod
+```
+
+# Command Cheat sheet
+```
+argocd app create #Create a new Argo CD application.
+argocd app list #List all applications in Argo CD.
+argocd app logs <appname> #Get the application’s log output.
+argocd app get <appname> #Get information about an Argo CD application.
+argocd app diff <appname> #Compare the application’s configuration to its source repository.
+argocd app sync <appname> #Synchronize the application with its source repository.
+argocd app history <appname> #Get information about an Argo CD application.
+argocd app rollback <appname> #Rollback to a previous version
+argocd app set <appname> #Set the application’s configuration.
+argocd app delete <appname> #Delete an Argo CD application.
+```
+
+
+
+
+