Adding files related to argo-workflows getting-started session

Author: mohammadll

v15-argo-workflows-getting-started/setting-up/note.txt

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+### Installing Argo-Workflows Helm Chart
+### Please Note that before installing Argo-workflows, you must have nginx-ingress-controller installed on the cluster
+### Also make sure to add the host used in the ingress to the /etc/hosts file
+
+### Install Argo-Workflows Helm Chart as following:
+kubectl create ns argo
+helm repo add argo https://argoproj.github.io/argo-helm
+helm install <<NAME>> argo/argo-cd -n argocd -f values.yml

v15-argo-workflows-getting-started/setting-up/values.yml

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+server:
+  extraArgs:
+    - --auth-mode=server ## The argo-server (and thus the UI) defaults to client authentication, which requires clients to provide their Kubernetes bearer token in order to authenticate, We switch the authentication mode to server so that we can bypass the UI login
+  # serviceType: NodePort  ## use NodePort instead of ingress if you want
+  # serviceNodePort: 32746
+  ingress:
+    enabled: true
+    ingressClassName: nginx
+    hosts:
+    - devops.hobbies

v15-argo-workflows-getting-started/template-types/templates.yml

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+apiVersion: argoproj.io/v1alpha1
+kind: Workflow
+metadata:
+  generateName: argo-wf-  # Name of this Workflow
+spec:
+  entrypoint: dag-template # Defines "dag-template" as the "main" template
+  templates:
+  - name: dag-template # Defining the "dag template" as a Template Invocator, You must use one of "dag" or "steps" as a template invocator
+    dag:
+      tasks:
+        - name: A
+          template: container-template
+        - name: B
+          template: script-template
+          dependencies: [A]
+        - name: C
+          template: resource-template
+          dependencies: [A]
+        - name: D
+          template: delay-template
+          dependencies: [B, C]
+# - name: steps-template # Defining the "steps template" as a Template Invocator, You must use one of "dag" or "steps" as a template invocator
+#   steps:
+#   - - name: step1
+#       template: container-template
+#   - - name: step2a
+#       template: script-template
+#     - name: step2b
+#       template: resource-template
+#   - - name: step3
+#       template: delay-template
+
+
+  - name: container-template # Defining the "container template" as a Template Definition
+    container:
+      image: alpine
+      command: ["/bin/sh", "-c"]
+      args: ["echo Hello from container template"]
+  - name: script-template # Defining the "script template" as a Template Definition
+    script:
+      image: python:alpine3.6
+      command: [python]
+      source: |
+        import random
+        i = random.randint(1, 100)
+        print(i)
+  - name: resource-template # Defining the "resource template" as a Template Definition
+    resource:
+      action: create
+      manifest: |
+        apiVersion: v1
+        kind: ConfigMap
+        metadata:
+          generateName: argo-wf-resource-template-cm-
+        data:
+          created_by: argo-workflows
+  - name: delay-template # Defining the "delay template" as a Template Definition
+    suspend:
+      duration: "20s"