c12s-kubespray/tests/testcases/030_check-network.yml

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---
- hosts: kube_control_plane[0]
vars:
test_image_repo: busybox
test_image_tag: latest
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tasks:
- name: Force binaries directory for Flatcar Container Linux by Kinvolk
set_fact:
bin_dir: "/opt/bin"
when: ansible_os_family in ["Flatcar Container Linux by Kinvolk"]
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- name: Force binaries directory for other hosts
set_fact:
bin_dir: "/usr/local/bin"
when: not ansible_os_family in ["Flatcar Container Linux by Kinvolk"]
- name: Approve kubelet serving certificates
block:
- name: Get certificate signing requests
command: "{{ bin_dir }}/kubectl get csr -o name"
register: get_csr
changed_when: false
- name: Check there are csrs
assert:
that: get_csr.stdout_lines | length > 0
fail_msg: kubelet_rotate_server_certificates is {{ kubelet_rotate_server_certificates }} but no csr's found
- name: Approve certificates
command: "{{ bin_dir }}/kubectl certificate approve {{ get_csr.stdout_lines | join(' ') }}"
register: certificate_approve
when: get_csr.stdout_lines | length > 0
changed_when: certificate_approve.stdout
- debug:
msg: "{{ certificate_approve.stdout.split('\n') }}"
when: kubelet_rotate_server_certificates | default(false)
- name: Create test namespace
command: "{{ bin_dir }}/kubectl create namespace test"
changed_when: false
- name: Wait for API token of test namespace
shell: "set -o pipefail && {{ bin_dir }}/kubectl describe serviceaccounts default --namespace test | grep Tokens | awk '{print $2}'"
args:
executable: /bin/bash
changed_when: false
register: default_token
until: default_token.stdout.find('<none>') == -1
retries: 5
delay: 5
- name: Run 2 busybox pods in test ns
command: "{{ bin_dir }}/kubectl run {{ item }} --image={{ test_image_repo }}:{{ test_image_tag }} --namespace test --command -- tail -f /dev/null"
changed_when: false
loop:
- busybox1
- busybox2
- import_role:
name: cluster-dump
- name: Check that all pods are running and ready
command: "{{ bin_dir }}/kubectl get pods --namespace test --no-headers -o yaml"
changed_when: false
register: run_pods_log
until:
# Check that all pods are running
- '(run_pods_log.stdout | from_yaml)["items"] | map(attribute = "status.phase") | unique | list == ["Running"]'
# Check that all pods are ready
- '(run_pods_log.stdout | from_yaml)["items"] | map(attribute = "status.containerStatuses") | map("map", attribute = "ready") | map("min") | min'
retries: 18
delay: 10
failed_when: false
no_log: true
- name: Get pod names
command: "{{ bin_dir }}/kubectl get pods -n test -o json"
changed_when: false
register: pods
no_log: true
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- debug:
msg: "{{ pods.stdout.split('\n') }}"
failed_when: not run_pods_log is success
- name: Get hostnet pods
command: "{{ bin_dir }}/kubectl get pods -n test -o
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jsonpath='{range .items[?(.spec.hostNetwork)]}{.metadata.name} {.status.podIP} {.status.containerStatuses} {end}'"
changed_when: false
register: hostnet_pods
ignore_errors: true
no_log: true
- name: Get running pods
command: "{{ bin_dir }}/kubectl get pods -n test -o
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jsonpath='{range .items[?(.status.phase==\"Running\")]}{.metadata.name} {.status.podIP} {.status.containerStatuses} {end}'"
changed_when: False
register: running_pods
no_log: true
- name: Check kubectl output
command: "{{ bin_dir }}/kubectl get pods --all-namespaces -owide"
changed_when: False
register: get_pods
no_log: true
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- debug:
msg: "{{ get_pods.stdout.split('\n') }}"
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- name: Set networking facts
set_fact:
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kube_pods_subnet: 10.233.64.0/18
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pod_names: "{{ (pods.stdout | from_json)['items'] | map(attribute = 'metadata.name') | list }}"
pod_ips: "{{ (pods.stdout | from_json)['items'] | selectattr('status.podIP', 'defined') | map(attribute = 'status.podIP') | list }}"
pods_hostnet: |
{% set list = hostnet_pods.stdout.split(" ") %}
{{ list }}
pods_running: |
{% set list = running_pods.stdout.split(" ") %}
{{ list }}
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- name: Check pods IP are in correct network
assert:
that: item | ipaddr(kube_pods_subnet)
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when:
- not item in pods_hostnet
- item in pods_running
with_items: "{{ pod_ips }}"
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- name: Ping between pods is working
command: "{{ bin_dir }}/kubectl -n test exec {{ item[0] }} -- ping -c 4 {{ item[1] }}"
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when:
- not item[0] in pods_hostnet
- not item[1] in pods_hostnet
with_nested:
- "{{ pod_names }}"
- "{{ pod_ips }}"
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- name: Ping between hostnet pods is working
command: "{{ bin_dir }}/kubectl -n test exec {{ item[0] }} -- ping -c 4 {{ item[1] }}"
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when:
- item[0] in pods_hostnet
- item[1] in pods_hostnet
with_nested:
- "{{ pod_names }}"
- "{{ pod_ips }}"