pangeo-infra.yml

---
#####
## Playbook that provisions and then configures a Kubernetes
## cluster on OpenStack before installing the Pangeo stack
#####

# Reuse Kubernetes playbook to create a cluster
- import_playbook: k8s-infra.yml

# Create a FreeIPA group for the notebook users
- hosts: freeipa_servers
  become: true
  tasks:
    - set_fact:
        pangeo_notebook_users_group: "{{ cluster_name | lower | replace('-', '_') }}_notebook_users"

    - name: Create notebook users group
      ipa_group:
        cn: "{{ pangeo_notebook_users_group }}"
        description: "Notebook users for Pangeo cluster '{{ cluster_name }}'"
        # If deleting the cluster, also delete the group
        state: "{{ cluster_state | default('present') }}"
        ipa_host: "{{ ansible_fqdn }}"
        ipa_pass: "{{ freeipa_admin_password }}"

# Helm will have been installed on the first host in the cluster
- hosts: "{{ groups.get('rke_hosts', []) | first | default('!all') }}"
  become: true
  pre_tasks:
    # Create persistent secrets for Pangeo
    - name: Generate Pangeo secrets
      include_tasks: tasks/util/persistent_random_fact.yml
      vars:
        fact_name: "{{ item }}"
        random_fact_bytes: 32
      loop:
        - pangeo_secret_token
        - pangeo_dask_gateway_api_token
  tasks:
    # Detect the chart used by the existing Pangeo installation
    - name: Detect chart for pangeo release
      shell: helm list --all-namespaces | grep -e "^pangeo" | awk '{ print $9; }' | awk -F"-" '{ print $1; }'
      changed_when: false
      register: pangeo_current_chart_cmd

    - name: Set pangeo current chart fact
      set_fact:
        pangeo_current_chart: "{{ pangeo_current_chart_cmd.stdout }}"

    - name: Remove legacy Pangeo installation
      include_role:
        name: jasmin.helm
        tasks_from: chart.yml
      vars:
        helm_release_name: pangeo
        helm_release_namespace: pangeo
        helm_release_state: absent
      when:
        - pangeo_current_chart is defined
        - pangeo_current_chart == "pangeo"

    # Install the Dask repo
    - name: Install Dask Helm repository
      command: helm repo add --force-update dask https://helm.dask.org/

    # Set facts that we need for the Helm chart
    - set_fact:
        pangeo_notebook_users_group: "{{ hostvars[groups.freeipa_servers | first].pangeo_notebook_users_group }}"

    # Install the Pangeo chart
    - include_role:
        name: jasmin.helm
        tasks_from: chart.yml
      vars:
        helm_release_name: pangeo
        helm_release_chart: dask/daskhub
        helm_release_version: "4.5.6"
        helm_release_namespace: pangeo
        helm_release_values_template: templates/helm/pangeo.yml