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---
- name: Testcases for network
hosts: kube_control_plane[0]
vars:
test_image_repo: registry.k8s.io/e2e-test-images/agnhost
test_image_tag: "2.40"
tasks:
- name: Force binaries directory for Flatcar Container Linux by Kinvolk
set_fact:
bin_dir: "/opt/bin"
when: ansible_os_family in ["Flatcar", "Flatcar Container Linux by Kinvolk"]
- name: Force binaries directory for other hosts
set_fact:
bin_dir: "/usr/local/bin"
when: not ansible_os_family in ["Flatcar", "Flatcar Container Linux by Kinvolk"]
- name: Check kubelet serving certificates approved with kubelet_csr_approver
when:
- kubelet_rotate_server_certificates | default(false)
- kubelet_csr_approver_enabled | default(kubelet_rotate_server_certificates | default(false))
vars:
csrs: "{{ csr_json.stdout | from_json }}"
block:
- name: Get certificate signing requests
command: "{{ bin_dir }}/kubectl get csr -o jsonpath-as-json={.items[*]}"
register: csr_json
changed_when: false
- debug: # noqa name[missing]
var: csrs
- name: Check there are csrs
assert:
that: csrs | length > 0
fail_msg: kubelet_rotate_server_certificates is {{ kubelet_rotate_server_certificates }} but no csr's found
- name: Check there are Denied/Pending csrs
assert:
that:
- csrs | rejectattr('status') | length == 0 # Pending == no status
- csrs | map(attribute='status.conditions') | flatten | selectattr('type', 'equalto', 'Denied') | length == 0 # Denied
fail_msg: kubelet_csr_approver is enabled but CSRs are not approved
- name: Approve kubelet serving certificates
when:
- kubelet_rotate_server_certificates | default(false)
- not (kubelet_csr_approver_enabled | default(kubelet_rotate_server_certificates | default(false)))
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: # noqa name[missing]
msg: "{{ certificate_approve.stdout.split('\n') }}"
- name: Create test namespace
command: "{{ bin_dir }}/kubectl create namespace test"
changed_when: false
- name: Run 2 agnhost pods in test ns
command:
cmd: "{{ bin_dir }}/kubectl apply -f -"
stdin: |
apiVersion: v1
kind: Pod
metadata:
name: {{ item }}
namespace: test
spec:
containers:
- name: agnhost
image: {{ test_image_repo }}:{{ test_image_tag }}
command: ['/agnhost', 'netexec', '--http-port=8080']
securityContext:
allowPrivilegeEscalation: false
capabilities:
drop: ['ALL']
runAsUser: 1000
runAsNonRoot: true
seccompProfile:
type: RuntimeDefault
changed_when: false
loop:
- agnhost1
- agnhost2
- import_role: # noqa name[missing]
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
- name: Get pod names
command: "{{ bin_dir }}/kubectl get pods -n test -o json"
changed_when: false
register: pods
- debug: # noqa name[missing]
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
jsonpath='{range .items[?(.spec.hostNetwork)]}{.metadata.name} {.status.podIP} {.status.containerStatuses} {end}'"
changed_when: false
register: hostnet_pods
ignore_errors: true # noqa ignore-errors
- name: Get running pods
command: "{{ bin_dir }}/kubectl get pods -n test -o
jsonpath='{range .items[?(.status.phase==\"Running\")]}{.metadata.name} {.status.podIP} {.status.containerStatuses} {end}'"
changed_when: false
register: running_pods
- name: Check kubectl output
command: "{{ bin_dir }}/kubectl get pods --all-namespaces -owide"
changed_when: false
register: get_pods
- debug: # noqa name[missing]
msg: "{{ get_pods.stdout.split('\n') }}"
- name: Set networking facts
set_fact:
kube_pods_subnet: 10.233.64.0/18
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 }}
- name: Check pods IP are in correct network
assert:
that: item | ansible.utils.ipaddr(kube_pods_subnet)
when:
- not item in pods_hostnet
- item in pods_running
with_items: "{{ pod_ips }}"
- name: Curl between pods is working
command: "{{ bin_dir }}/kubectl -n test exec {{ item[0] }} -- curl {{ item[1] }}:8080"
when:
- not item[0] in pods_hostnet
- not item[1] in pods_hostnet
with_nested:
- "{{ pod_names }}"
- "{{ pod_ips }}"
- name: Curl between hostnet pods is working
command: "{{ bin_dir }}/kubectl -n test exec {{ item[0] }} -- curl {{ item[1] }}:8080"
when:
- item[0] in pods_hostnet
- item[1] in pods_hostnet
with_nested:
- "{{ pod_names }}"
- "{{ pod_ips }}"
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