/
builder.go
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/
builder.go
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// Unless explicitly stated otherwise all files in this repository are licensed
// under the Apache License Version 2.0.
// This product includes software developed at Datadog (https://www.datadoghq.com/).
// Copyright 2016-present Datadog, Inc.
package datadogagent
import (
corev1 "k8s.io/api/core/v1"
)
// BuilderOptions corresponds to Builders options.
type BuilderOptions struct {
AllowOverride bool
}
// VolumeBuilder used to generate a list of Volume.
type VolumeBuilder struct {
options BuilderOptions
volumes []corev1.Volume
}
// VolumeMountBuilder used to generate a list of VolumeMount.
type VolumeMountBuilder struct {
options BuilderOptions
volumeMounts []corev1.VolumeMount
}
// EnvVarBuilder used to generate a list of EnvVar.
type EnvVarBuilder struct {
options BuilderOptions
envVars []corev1.EnvVar
}
// DefaultBuilderOptions returns a default BuilderOptions instance.
func DefaultBuilderOptions() BuilderOptions {
return BuilderOptions{
AllowOverride: true,
}
}
// NewVolumeBuilder returns a new VolumeBuilder instance.
func NewVolumeBuilder(volumes []corev1.Volume, opts *BuilderOptions) *VolumeBuilder {
builder := &VolumeBuilder{
volumes: volumes,
options: DefaultBuilderOptions(),
}
if opts != nil {
builder.options = *opts
}
return builder
}
// NewVolumeMountBuilder returns a new VolumeMountBuilder instance.
func NewVolumeMountBuilder(volumeMounts []corev1.VolumeMount, opts *BuilderOptions) *VolumeMountBuilder {
builder := &VolumeMountBuilder{
volumeMounts: volumeMounts,
options: DefaultBuilderOptions(),
}
if opts != nil {
builder.options = *opts
}
return builder
}
// NewEnvVarsBuilder returns a new EnvVarsBuilder instance.
func NewEnvVarsBuilder(envVars []corev1.EnvVar, opts *BuilderOptions) *EnvVarBuilder {
builder := &EnvVarBuilder{
envVars: envVars,
options: DefaultBuilderOptions(),
}
if opts != nil {
builder.options = *opts
}
return builder
}
// Add used to add an EnvVar to the EnvVarBuilder.
func (b *EnvVarBuilder) Add(iEnvVar *corev1.EnvVar) *EnvVarBuilder {
found := false
for id, envVar := range b.envVars {
if envVar.Name == iEnvVar.Name {
found = true
if b.options.AllowOverride {
b.envVars[id] = *iEnvVar
}
}
}
if !found {
b.envVars = append(b.envVars, *iEnvVar)
}
return b
}
// Remove used to remove an EnvVar to the EnvVarBuilder.
func (b *EnvVarBuilder) Remove(volumeName string) *EnvVarBuilder {
for id, vol := range b.envVars {
if vol.Name == volumeName {
// remove the volume
copy(b.envVars[id:], b.envVars[id+1:])
b.envVars = b.envVars[:len(b.envVars)-1]
}
}
return b
}
// Build return the generated EnvVar list.
func (b *EnvVarBuilder) Build() []corev1.EnvVar {
return b.envVars
}
// Add used to add an Volume to the VolumeBuilder.
func (b *VolumeBuilder) Add(iVolume *corev1.Volume) *VolumeBuilder {
found := false
for id, vol := range b.volumes {
if vol.Name == iVolume.Name {
found = true
if b.options.AllowOverride {
b.volumes[id] = *iVolume
}
}
}
if !found {
b.volumes = append(b.volumes, *iVolume)
}
return b
}
// Remove used to remove an Volume from the VolumeBuilder.
func (b *VolumeBuilder) Remove(volumeName string) *VolumeBuilder {
for id, vol := range b.volumes {
if vol.Name == volumeName {
// remove the volume
copy(b.volumes[id:], b.volumes[id+1:])
b.volumes = b.volumes[:len(b.volumes)-1]
}
}
return b
}
// Build used to generate a list of Volume.
func (b *VolumeBuilder) Build() []corev1.Volume {
return b.volumes
}
// Add used to add an VolumeMount to the VolumeMountBuilder.
func (b *VolumeMountBuilder) Add(iVolumeMount *corev1.VolumeMount) *VolumeMountBuilder {
found := false
for id, vol := range b.volumeMounts {
if vol.Name == iVolumeMount.Name {
found = true
if b.options.AllowOverride {
b.volumeMounts[id] = *iVolumeMount
}
}
}
if !found {
b.volumeMounts = append(b.volumeMounts, *iVolumeMount)
}
return b
}
// Remove used to remove an VolumeMount from the VolumeMountBuilder.
func (b *VolumeMountBuilder) Remove(volumeName string) *VolumeMountBuilder {
for id, vol := range b.volumeMounts {
if vol.Name == volumeName {
// remove the volume
copy(b.volumeMounts[id:], b.volumeMounts[id+1:])
b.volumeMounts = b.volumeMounts[:len(b.volumeMounts)-1]
}
}
return b
}
// Build used to generate a list of VolumeMount
func (b *VolumeMountBuilder) Build() []corev1.VolumeMount {
return b.volumeMounts
}