Upgrade all testing linux CI machines to Ubuntu-20.04 (#3799)

.azure-pipelines-k8s-matrix.yml

@@ -15,7 +15,7 @@ trigger: none
 jobs:
   - job: Linux
     pool:
-      vmImage: ubuntu-16.04
+      vmImage: ubuntu-20.04
     strategy:
       matrix:
         kube_1.16:
@@ -46,7 +46,7 @@ jobs:
           curl -LO https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64
           sudo install minikube-linux-amd64 /usr/local/bin/minikube
           sudo minikube start --driver=none --kubernetes-version $(kubernetes_version)
-          # Although the kube and minikube config files are in placed $HOME they are owned by root
+          sudo mv /root/.kube /root/.minikube $HOME
           sudo chown -R $USER $HOME/.kube $HOME/.minikube
         displayName: Install integration test dependencies
       - script: make node_modules

.azure-pipelines.yml

@@ -109,7 +109,7 @@ jobs:
 
   - job: Linux
     pool:
-      vmImage: ubuntu-16.04
+      vmImage: ubuntu-20.04
     strategy:
       matrix:
         node_14.x:

.github/workflows/test.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-16.04, macos-11, windows-2019]
+        os: [ubuntu-20.04, macos-11, windows-2019]
         node-version: [14.x]
     steps:
       - name: Checkout Release from lens
@@ -67,15 +67,9 @@ jobs:
       - run: make test-extensions
         name: Run In-tree Extension tests
 
-      - run: |
-          sudo apt-get update
-          sudo apt-get install libgconf-2-4 conntrack -y
-          curl -LO https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64
-          sudo install minikube-linux-amd64 /usr/local/bin/minikube
-          sudo minikube start --driver=none
-          # Although the kube and minikube config files are in placed $HOME they are owned by root
-          sudo chown -R $USER $HOME/.kube $HOME/.minikube
-        name: Install integration test dependencies
+      - name: Install integration test dependencies
+        id: minikube
+        uses: medyagh/setup-minikube@5a9a7104d7322fa40424de8855c84685e89cefd7
         if: runner.os == 'Linux'
 
       - run: xvfb-run --auto-servernum --server-args='-screen 0, 1600x900x24' make integration