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Provide liveness probe for CRD and config (#3089)
* add LivenessProbe to both CRDs * auto-generate liveness probe for CRD * update topolgySpreadConstraint schema validation * Disable it for config map
This commit is contained in:
Felix Kunde
@@ -280,6 +280,159 @@ spec:
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type: array
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items:
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type: string
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liveness_probe:
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description: |-
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Probe describes a health check to be performed against a container to determine whether it is
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alive or ready to receive traffic.
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properties:
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exec:
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description: Exec specifies a command to execute in the container.
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properties:
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command:
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description: |-
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Command is the command line to execute inside the container, the working directory for the
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command is root ('/') in the container's filesystem. The command is simply exec'd, it is
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not run inside a shell, so traditional shell instructions ('|', etc) won't work. To use
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a shell, you need to explicitly call out to that shell.
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Exit status of 0 is treated as live/healthy and non-zero is unhealthy.
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items:
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type: string
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type: array
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x-kubernetes-list-type: atomic
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type: object
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failureThreshold:
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description: |-
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Minimum consecutive failures for the probe to be considered failed after having succeeded.
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Defaults to 3. Minimum value is 1.
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format: int32
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type: integer
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grpc:
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description: GRPC specifies a GRPC HealthCheckRequest.
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properties:
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port:
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description: Port number of the gRPC service. Number must
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be in the range 1 to 65535.
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format: int32
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type: integer
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service:
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default: ""
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description: |-
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Service is the name of the service to place in the gRPC HealthCheckRequest
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(see https://github.com/grpc/grpc/blob/master/doc/health-checking.md).
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If this is not specified, the default behavior is defined by gRPC.
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type: string
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required:
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- port
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type: object
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httpGet:
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description: HTTPGet specifies an HTTP GET request to perform.
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properties:
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host:
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description: |-
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Host name to connect to, defaults to the pod IP. You probably want to set
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"Host" in httpHeaders instead.
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type: string
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httpHeaders:
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description: Custom headers to set in the request. HTTP allows
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repeated headers.
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items:
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description: HTTPHeader describes a custom header to be
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used in HTTP probes
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properties:
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name:
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description: |-
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The header field name.
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This will be canonicalized upon output, so case-variant names will be understood as the same header.
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type: string
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value:
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description: The header field value
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type: string
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required:
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- name
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- value
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type: object
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type: array
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x-kubernetes-list-type: atomic
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path:
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description: Path to access on the HTTP server.
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type: string
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port:
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anyOf:
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- type: integer
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- type: string
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description: |-
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Name or number of the port to access on the container.
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Number must be in the range 1 to 65535.
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Name must be an IANA_SVC_NAME.
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x-kubernetes-int-or-string: true
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scheme:
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description: |-
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Scheme to use for connecting to the host.
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Defaults to HTTP.
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type: string
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required:
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- port
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type: object
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initialDelaySeconds:
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description: |-
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Number of seconds after the container has started before liveness probes are initiated.
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More info: https://kubernetes.io/docs/concepts/workloads/pods/pod-lifecycle#container-probes
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format: int32
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type: integer
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periodSeconds:
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description: |-
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How often (in seconds) to perform the probe.
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Default to 10 seconds. Minimum value is 1.
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format: int32
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type: integer
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successThreshold:
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description: |-
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Minimum consecutive successes for the probe to be considered successful after having failed.
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Defaults to 1. Must be 1 for liveness and startup. Minimum value is 1.
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format: int32
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type: integer
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tcpSocket:
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description: TCPSocket specifies a connection to a TCP port.
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properties:
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host:
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description: 'Optional: Host name to connect to, defaults
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to the pod IP.'
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type: string
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port:
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anyOf:
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- type: integer
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- type: string
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description: |-
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Number or name of the port to access on the container.
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Number must be in the range 1 to 65535.
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Name must be an IANA_SVC_NAME.
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x-kubernetes-int-or-string: true
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required:
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- port
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type: object
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terminationGracePeriodSeconds:
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description: |-
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Optional duration in seconds the pod needs to terminate gracefully upon probe failure.
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The grace period is the duration in seconds after the processes running in the pod are sent
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a termination signal and the time when the processes are forcibly halted with a kill signal.
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Set this value longer than the expected cleanup time for your process.
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If this value is nil, the pod's terminationGracePeriodSeconds will be used. Otherwise, this
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value overrides the value provided by the pod spec.
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Value must be non-negative integer. The value zero indicates stop immediately via
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the kill signal (no opportunity to shut down).
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This is a beta field and requires enabling ProbeTerminationGracePeriod feature gate.
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Minimum value is 1. spec.terminationGracePeriodSeconds is used if unset.
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format: int64
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type: integer
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timeoutSeconds:
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description: |-
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Number of seconds after which the probe times out.
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Defaults to 1 second. Minimum value is 1.
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More info: https://kubernetes.io/docs/concepts/workloads/pods/pod-lifecycle#container-probes
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format: int32
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type: integer
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type: object
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master_pod_move_timeout:
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type: string
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default: "20m"
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