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107 lines
4.0 KiB
107 lines
4.0 KiB
/*
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Copyright The Helm Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package kube
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import (
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"io"
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"time"
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v1 "k8s.io/api/core/v1"
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"k8s.io/apimachinery/pkg/runtime"
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)
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// Interface represents a client capable of communicating with the Kubernetes API.
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//
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// A KubernetesClient must be concurrency safe.
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type Interface interface {
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// Create creates one or more resources.
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Create(resources ResourceList) (*Result, error)
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// Wait waits up to the given timeout for the specified resources to be ready.
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Wait(resources ResourceList, timeout time.Duration) error
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// WaitWithJobs wait up to the given timeout for the specified resources to be ready, including jobs.
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WaitWithJobs(resources ResourceList, timeout time.Duration) error
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// Delete destroys one or more resources.
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Delete(resources ResourceList) (*Result, []error)
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// WatchUntilReady watches the resources given and waits until it is ready.
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//
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// This method is mainly for hook implementations. It watches for a resource to
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// hit a particular milestone. The milestone depends on the Kind.
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//
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// For Jobs, "ready" means the Job ran to completion (exited without error).
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// For Pods, "ready" means the Pod phase is marked "succeeded".
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// For all other kinds, it means the kind was created or modified without
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// error.
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WatchUntilReady(resources ResourceList, timeout time.Duration) error
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// Update updates one or more resources or creates the resource
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// if it doesn't exist.
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Update(original, target ResourceList, force bool) (*Result, error)
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// Build creates a resource list from a Reader.
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//
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// Reader must contain a YAML stream (one or more YAML documents separated
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// by "\n---\n")
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//
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// Validates against OpenAPI schema if validate is true.
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Build(reader io.Reader, validate bool) (ResourceList, error)
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// WaitAndGetCompletedPodPhase waits up to a timeout until a pod enters a completed phase
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// and returns said phase (PodSucceeded or PodFailed qualify).
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WaitAndGetCompletedPodPhase(name string, timeout time.Duration) (v1.PodPhase, error)
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// IsReachable checks whether the client is able to connect to the cluster.
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IsReachable() error
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}
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// InterfaceExt is introduced to avoid breaking backwards compatibility for Interface implementers.
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//
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// TODO Helm 4: Remove InterfaceExt and integrate its method(s) into the Interface.
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type InterfaceExt interface {
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// WaitForDelete wait up to the given timeout for the specified resources to be deleted.
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WaitForDelete(resources ResourceList, timeout time.Duration) error
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}
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// InterfaceResources is introduced to avoid breaking backwards compatibility for Interface implementers.
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//
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// TODO Helm 4: Remove InterfaceResources and integrate its method(s) into the Interface.
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type InterfaceResources interface {
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// Get details of deployed resources.
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// The first argument is a list of resources to get. The second argument
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// specifies if related pods should be fetched. For example, the pods being
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// managed by a deployment.
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Get(resources ResourceList, related bool) (map[string][]runtime.Object, error)
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// BuildTable creates a resource list from a Reader. This differs from
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// Interface.Build() in that a table kind is returned. A table is useful
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// if you want to use a printer to display the information.
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//
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// Reader must contain a YAML stream (one or more YAML documents separated
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// by "\n---\n")
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//
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// Validates against OpenAPI schema if validate is true.
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// TODO Helm 4: Integrate into Build with an argument
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BuildTable(reader io.Reader, validate bool) (ResourceList, error)
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}
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var _ Interface = (*Client)(nil)
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var _ InterfaceExt = (*Client)(nil)
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var _ InterfaceResources = (*Client)(nil)
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