108 lines
2.7 KiB
Go
108 lines
2.7 KiB
Go
/*
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Copyright 2019 The Kubernetes 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 lints
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import (
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"fmt"
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"strings"
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v1 "k8s.io/api/apps/v1"
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kmeta "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/ingress-nginx/cmd/plugin/util"
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)
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// DeploymentLint is a validation for a deployment
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type DeploymentLint struct {
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message string
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version string
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issue int
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f func(cmp v1.Deployment) bool
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}
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// Check returns true if the lint detects an issue
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func (lint DeploymentLint) Check(obj kmeta.Object) bool {
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cmp := obj.(*v1.Deployment)
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return lint.f(*cmp)
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}
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// Message is a description of the lint
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func (lint DeploymentLint) Message() string {
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return lint.message
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}
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// Version is the ingress-nginx version the lint was added for, or the empty string
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func (lint DeploymentLint) Version() string {
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return lint.version
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}
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// Link is a URL to the issue or PR explaining the lint
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func (lint DeploymentLint) Link() string {
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if lint.issue > 0 {
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return fmt.Sprintf("%v%v", util.IssuePrefix, lint.issue)
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}
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return ""
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}
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// GetDeploymentLints retuns all of the lints for ingresses
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func GetDeploymentLints() []DeploymentLint {
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return []DeploymentLint{
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removedFlag("sort-backends", 3655, "0.22.0"),
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removedFlag("force-namespace-isolation", 3887, "0.24.0"),
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}
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}
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func removedFlag(flag string, issueNumber int, version string) DeploymentLint {
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return DeploymentLint{
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message: fmt.Sprintf("Uses removed config flag --%v", flag),
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issue: issueNumber,
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version: version,
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f: func(dep v1.Deployment) bool {
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if !isIngressNginxDeployment(dep) {
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return false
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}
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args := getNginxArgs(dep)
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for _, arg := range args {
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if strings.HasPrefix(arg, fmt.Sprintf("--%v", flag)) {
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return true
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}
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}
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return false
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},
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}
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}
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func getNginxArgs(dep v1.Deployment) []string {
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for _, container := range dep.Spec.Template.Spec.Containers {
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if len(container.Args) > 0 && container.Args[0] == "/nginx-ingress-controller" {
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return container.Args
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}
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}
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return make([]string, 0)
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}
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func isIngressNginxDeployment(dep v1.Deployment) bool {
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containers := dep.Spec.Template.Spec.Containers
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for _, container := range containers {
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if len(container.Args) > 0 && container.Args[0] == "/nginx-ingress-controller" {
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return true
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}
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}
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return false
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}
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