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deployment.go
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deployment.go
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// Copyright 2023 The PipeCD Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package kubernetes
import (
"sort"
appsv1 "k8s.io/api/apps/v1"
corev1 "k8s.io/api/core/v1"
)
func FindReferencingConfigMapsInDeployment(d *appsv1.Deployment) []string {
m := make(map[string]struct{}, 0)
// Find all configmaps specified in Volumes.
for _, v := range d.Spec.Template.Spec.Volumes {
if cm := v.ConfigMap; cm != nil {
m[cm.Name] = struct{}{}
}
}
findInContainers := func(containers []corev1.Container) {
for _, c := range containers {
for _, env := range c.Env {
if source := env.ValueFrom; source != nil {
if ref := source.ConfigMapKeyRef; ref != nil {
m[ref.Name] = struct{}{}
}
}
}
for _, env := range c.EnvFrom {
if ref := env.ConfigMapRef; ref != nil {
m[ref.Name] = struct{}{}
}
}
}
}
// Find all configmaps specified in Env.
findInContainers(d.Spec.Template.Spec.Containers)
findInContainers(d.Spec.Template.Spec.InitContainers)
if len(m) == 0 {
return nil
}
out := make([]string, 0, len(m))
for k := range m {
out = append(out, k)
}
sort.Strings(out)
return out
}
func FindReferencingSecretsInDeployment(d *appsv1.Deployment) []string {
m := make(map[string]struct{}, 0)
// Find all secrets specified in Volumes.
for _, v := range d.Spec.Template.Spec.Volumes {
if s := v.Secret; s != nil {
m[s.SecretName] = struct{}{}
}
}
findInContainers := func(containers []corev1.Container) {
for _, c := range containers {
for _, env := range c.Env {
if source := env.ValueFrom; source != nil {
if ref := source.SecretKeyRef; ref != nil {
m[ref.Name] = struct{}{}
}
}
}
for _, env := range c.EnvFrom {
if ref := env.SecretRef; ref != nil {
m[ref.Name] = struct{}{}
}
}
}
}
// Find all secrets specified in Env.
findInContainers(d.Spec.Template.Spec.Containers)
findInContainers(d.Spec.Template.Spec.InitContainers)
if len(m) == 0 {
return nil
}
out := make([]string, 0, len(m))
for k := range m {
out = append(out, k)
}
sort.Strings(out)
return out
}