/
purge_confirm.go
160 lines (142 loc) · 5.65 KB
/
purge_confirm.go
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package workflows
import (
"fmt"
"github.com/stelligent/mu/common"
)
type purgeWorkflow struct {
context *common.Context
}
// NewPurge create a new workflow for purging mu resources
func NewPurge(ctx *common.Context) Executor {
workflow := new(purgeWorkflow)
workflow.context = ctx
iamCommonStackName := fmt.Sprintf("%s-iam-common", ctx.Config.Namespace)
return newPipelineExecutor(
ctx.RolesetManager.UpsertCommonRoleset,
workflow.newStackStream(common.StackTypeProduct).foreach(workflow.terminateProduct, workflow.deleteStack),
workflow.newStackStream(common.StackTypePortfolio).foreach(workflow.deleteStack),
workflow.newStackStream(common.StackTypePipeline).foreach(workflow.terminatePipeline),
workflow.newStackStream(common.StackTypeEnv).foreach(workflow.terminateEnvironment),
workflow.newStackStream(common.StackTypeSchedule).foreach(workflow.deleteStack),
workflow.newStackStream(common.StackTypeService).foreach(workflow.deleteStack),
workflow.newStackStream(common.StackTypeDatabase).foreach(workflow.terminateDatabase),
workflow.newStackStream(common.StackTypeLoadBalancer).foreach(workflow.deleteStack),
workflow.newStackStream(common.StackTypeEnv).foreach(workflow.deleteStack),
workflow.newStackStream(common.StackTypeVpc).foreach(workflow.deleteStack),
workflow.newStackStream(common.StackTypeTarget).foreach(workflow.deleteStack),
workflow.newStackStream(common.StackTypeRepo).foreach(workflow.cleanupRepo, workflow.deleteStack),
workflow.newStackStream(common.StackTypeApp).foreach(workflow.deleteStack),
workflow.newStackStream(common.StackTypeProduct).foreach(workflow.deleteStack),
workflow.newStackStream(common.StackTypePortfolio).foreach(workflow.deleteStack),
workflow.newStackStream(common.StackTypeBucket).foreach(workflow.cleanupBucket, workflow.deleteStack),
workflow.newStackStream(common.StackTypeIam).filter(excludeStackName(iamCommonStackName)).foreach(workflow.deleteStack),
workflow.terminateCommonRoleset(),
)
}
func (workflow *purgeWorkflow) terminateDatabase(stack *common.Stack) Executor {
return NewDatabaseTerminator(workflow.context, stack.Tags["service"], stack.Tags["environment"])
}
func (workflow *purgeWorkflow) terminatePipeline(stack *common.Stack) Executor {
return NewPipelineTerminator(workflow.context, stack.Tags["service"])
}
func (workflow *purgeWorkflow) terminateEnvironment(stack *common.Stack) Executor {
return NewEnvironmentsTerminator(workflow.context, []string{stack.Tags["environment"]})
}
func (workflow *purgeWorkflow) terminateCommonRoleset() Executor {
return func() error {
workflow.context.StackManager.AllowDataLoss(true)
return workflow.context.RolesetManager.DeleteCommonRoleset()
}
}
func excludeStackName(stackName string) stackFilter {
return func(stack *common.Stack) bool {
return stack.Name != stackName
}
}
func (workflow *purgeWorkflow) deleteStack(stack *common.Stack) Executor {
stackName := stack.Name
return func() error {
err := workflow.context.StackManager.DeleteStack(stackName)
if err != nil {
return err
}
status := workflow.context.StackManager.AwaitFinalStatus(stackName)
if status != nil && !workflow.context.Config.DryRun {
return fmt.Errorf("Unable to delete stack '%s'", stackName)
}
return nil
}
}
func (workflow *purgeWorkflow) cleanupBucket(stack *common.Stack) Executor {
bucketName := stack.Outputs["Bucket"]
return func() error {
return workflow.context.ArtifactManager.EmptyBucket(bucketName)
}
}
func (workflow *purgeWorkflow) cleanupRepo(stack *common.Stack) Executor {
repoName := stack.Parameters["RepoName"]
return func() error {
return workflow.context.ClusterManager.DeleteRepository(repoName)
}
}
type stackStream struct {
namespace string
stackType common.StackType
stackLister common.StackLister
filters []stackFilter
}
func (workflow *purgeWorkflow) newStackStream(stackType common.StackType) *stackStream {
return &stackStream{
namespace: workflow.context.Config.Namespace,
stackType: stackType,
stackLister: workflow.context.StackManager,
filters: make([]stackFilter, 0),
}
}
type stackExecutor func(stack *common.Stack) Executor
type stackFilter func(stack *common.Stack) bool
func (stream *stackStream) filter(filter stackFilter) *stackStream {
stream.filters = append(stream.filters, filter)
return stream
}
// Check if the filters for the stream to see if the stack should be included
func (stream *stackStream) included(stack *common.Stack) bool {
for _, filter := range stream.filters {
if !filter(stack) {
return false
}
}
return true
}
// Create a pipeline executor consiting of the resolved stackExecutors for a given stack
func applyStackExecutors(stack *common.Stack, stackExecutors ...stackExecutor) Executor {
executors := make([]Executor, 0)
for _, stackExecutor := range stackExecutors {
executor := stackExecutor(stack)
if executor != nil {
executors = append(executors, executor)
}
}
return newPipelineExecutor(executors...)
}
// Create an executor that can iterate over all stacks and run executors against the stacks
func (stream *stackStream) foreach(stackExecutors ...stackExecutor) Executor {
return func() error {
log.Noticef("Purging '%s' stacks in namespace '%s'", stream.stackType, stream.namespace)
stacks, err := stream.stackLister.ListStacks(stream.stackType, stream.namespace)
if err != nil {
return err
}
executors := make([]Executor, 0)
for _, stack := range stacks {
if !stream.included(stack) {
log.Debugf("skipping %s", stack.Name)
continue
}
log.Debugf("adding %s", stack.Name)
executors = append(executors, applyStackExecutors(stack, stackExecutors...))
}
executor := newParallelExecutor(executors...)
return executor()
}
}