Add .circleci/config.yml for arm

.circleci/config.yml

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+version: 2.1
+
+orbs:
+  python: circleci/[email protected]
+
+jobs:
+  # Testing on ARM64
+  # https://circleci.com/docs/2.0/arm-resources/#using-arm-resources
+  test-arm:
+    machine:
+      image: ubuntu-2004:202101-01
+    # TODO: resource_class is ignored and falls back to the standard x86_64 medium
+    # Need to apply to use arm
+    resource_class: arm.medium
+    steps:
+      - checkout
+
+      - run:
+          command: uname -a
+          name: Check architecture
+
+      - run:
+          command: >-
+            curl -sfL https://get.k3s.io |
+            INSTALL_K3S_CHANNEL=v1.20 sh -s -
+            --disable metrics-server
+            --disable traefik
+            --docker
+          name: Install K3S
+
+      - run:
+          command: |
+            mkdir -p ~/.kube
+            sudo cat /etc/rancher/k3s/k3s.yaml > "$HOME/.kube/config"
+            chmod 600 "$HOME/.kube/config"
+          name: Prepare a kubeconfig in ~/.kube/config
+
+      - run:
+          command: |
+            . ci/common
+            setup_helm
+            pip3 install --no-cache-dir -r dev-requirements.txt
+          name: Install dependencies
+
+      - run:
+          command: |
+            chartpress
+          name: Run chartpress
+
+      - run:
+          command: |
+            export KUBECONFIG="$HOME/.kube/config"
+            helm upgrade --install jupyterhub ./jupyterhub --values dev-config.yaml  --values dev-config-arm.yaml --wait
+          name: Install local chart
+
+      - run:
+          command: |
+            export KUBECONFIG="$HOME/.kube/config"
+            export HUB_URL=http://localhost:30080
+            . ./ci/common
+            pytest --verbose --color=yes ./tests -m 'not netpol'
+          name: Run tests
+
+workflows:
+  main:
+    jobs:
+      - test-arm

dev-config-arm.yaml

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+# Override some values in dev-config.yaml
+proxy:
+  https:
+    enabled: false
+
+singleuser:
+  image:
+    name: sakuraiyuta/base-notebook
+    tag: latest