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feat: support terraform runtime (#112)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,18 @@ | ||
| package init | ||
|
|
||
| import ( | ||
| "kusionstack.io/kusion/pkg/engine/models" | ||
| "kusionstack.io/kusion/pkg/engine/runtime" | ||
| "kusionstack.io/kusion/pkg/engine/runtime/terraform" | ||
| ) | ||
|
|
||
| func InitRuntime() map[models.Type]InitFn { | ||
| runtimes := map[models.Type]InitFn{ | ||
| runtime.Kubernetes: runtime.NewKubernetesRuntime, | ||
| runtime.Terraform: terraform.NewTerraformRuntime, | ||
| } | ||
| return runtimes | ||
| } | ||
|
|
||
| // InitFn init Runtime | ||
| type InitFn func() (runtime.Runtime, error) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,156 @@ | ||
| package terraform | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
|
|
||
| "github.com/imdario/mergo" | ||
| "github.com/spf13/afero" | ||
| "kusionstack.io/kusion/pkg/engine/models" | ||
| "kusionstack.io/kusion/pkg/engine/runtime" | ||
| "kusionstack.io/kusion/pkg/engine/runtime/terraform/tfops" | ||
| "kusionstack.io/kusion/pkg/status" | ||
| ) | ||
|
|
||
| var _ runtime.Runtime = &TerraformRuntime{} | ||
|
|
||
| type TerraformRuntime struct { | ||
| tfops.WorkspaceStore | ||
| } | ||
|
|
||
| func NewTerraformRuntime() (runtime.Runtime, error) { | ||
| fs := afero.Afero{Fs: afero.NewOsFs()} | ||
| ws, err := tfops.GetWorkspaceStore(fs) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| TFRuntime := &TerraformRuntime{ws} | ||
| return TFRuntime, nil | ||
| } | ||
|
|
||
| // Apply terraform apply resource | ||
| func (t *TerraformRuntime) Apply(ctx context.Context, request *runtime.ApplyRequest) *runtime.ApplyResponse { | ||
| planState := request.PlanResource | ||
| w, ok := t.Store[planState.ResourceKey()] | ||
| if !ok { | ||
| err := t.Create(ctx, planState) | ||
| if err != nil { | ||
| return &runtime.ApplyResponse{Resource: nil, Status: status.NewErrorStatus(err)} | ||
| } | ||
| w = t.Store[planState.ResourceKey()] | ||
| } | ||
|
|
||
| // get terraform provider version | ||
| providerAddr, err := w.GetProvider() | ||
| if err != nil { | ||
| return &runtime.ApplyResponse{Resource: nil, Status: status.NewErrorStatus(err)} | ||
| } | ||
|
|
||
| // terraform dry run merge state | ||
| // TODO: terraform dry run apply,not only merge state | ||
| if request.DryRun { | ||
| prior := request.PriorResource.DeepCopy() | ||
| if err := mergo.Merge(prior, planState, mergo.WithSliceDeepCopy, mergo.WithOverride); err != nil { | ||
| return &runtime.ApplyResponse{Resource: nil, Status: status.NewErrorStatus(err)} | ||
| } | ||
|
|
||
| return &runtime.ApplyResponse{Resource: &models.Resource{ | ||
| ID: planState.ID, | ||
| Type: planState.Type, | ||
| Attributes: prior.Attributes, | ||
| DependsOn: planState.DependsOn, | ||
| Extensions: planState.Extensions, | ||
| }, Status: nil} | ||
| } | ||
| w.SetResource(planState) | ||
|
|
||
| if err := w.WriteHCL(); err != nil { | ||
| return &runtime.ApplyResponse{Resource: nil, Status: status.NewErrorStatus(err)} | ||
| } | ||
|
|
||
| tfstate, err := w.Apply(ctx) | ||
| if err != nil { | ||
| return &runtime.ApplyResponse{Resource: nil, Status: status.NewErrorStatus(err)} | ||
| } | ||
|
|
||
| r := tfops.ConvertTFState(tfstate, providerAddr) | ||
|
|
||
| return &runtime.ApplyResponse{ | ||
| Resource: &models.Resource{ | ||
| ID: r.ID, | ||
| Type: r.Type, | ||
| Attributes: r.Attributes, | ||
| DependsOn: planState.DependsOn, | ||
| Extensions: planState.Extensions, | ||
| }, | ||
| Status: nil, | ||
| } | ||
| } | ||
|
|
||
| // Read terraform show state | ||
| func (t *TerraformRuntime) Read(ctx context.Context, request *runtime.ReadRequest) *runtime.ReadResponse { | ||
| priorState := request.PriorResource | ||
| planState := request.PlanResource | ||
| if priorState == nil { | ||
| return &runtime.ReadResponse{Resource: nil, Status: nil} | ||
| } | ||
| var tfstate *tfops.TFState | ||
| w, ok := t.Store[planState.ResourceKey()] | ||
| if !ok { | ||
| err := t.Create(ctx, planState) | ||
| if err != nil { | ||
| return &runtime.ReadResponse{Resource: nil, Status: status.NewErrorStatus(err)} | ||
| } | ||
| w = t.Store[priorState.ResourceKey()] | ||
| if err := w.WriteTFState(priorState); err != nil { | ||
| return &runtime.ReadResponse{Resource: nil, Status: status.NewErrorStatus(err)} | ||
| } | ||
| } | ||
|
|
||
| tfstate, err := w.RefreshOnly(ctx) | ||
| if err != nil { | ||
| return &runtime.ReadResponse{Resource: nil, Status: status.NewErrorStatus(err)} | ||
| } | ||
| if tfstate == nil || tfstate.Values == nil { | ||
| return &runtime.ReadResponse{Resource: nil, Status: nil} | ||
| } | ||
|
|
||
| // get terraform provider addr | ||
| providerAddr, err := w.GetProvider() | ||
| if err != nil { | ||
| return &runtime.ReadResponse{Resource: nil, Status: status.NewErrorStatus(err)} | ||
| } | ||
|
|
||
| r := tfops.ConvertTFState(tfstate, providerAddr) | ||
| return &runtime.ReadResponse{ | ||
| Resource: &models.Resource{ | ||
| ID: r.ID, | ||
| Type: r.Type, | ||
| Attributes: r.Attributes, | ||
| DependsOn: planState.DependsOn, | ||
| Extensions: planState.Extensions, | ||
| }, | ||
| Status: nil, | ||
| } | ||
| } | ||
|
|
||
| // Delete terraform resource and remove workspace | ||
| func (t *TerraformRuntime) Delete(ctx context.Context, request *runtime.DeleteRequest) *runtime.DeleteResponse { | ||
| w, ok := t.Store[request.Resource.ResourceKey()] | ||
| if !ok { | ||
| return &runtime.DeleteResponse{Status: status.NewErrorStatus(fmt.Errorf("%s terraform workspace not exist, cannot delete", request.Resource.ResourceKey()))} | ||
| } | ||
| if err := w.Destroy(ctx); err != nil { | ||
| return &runtime.DeleteResponse{Status: status.NewErrorStatus(err)} | ||
| } | ||
|
|
||
| if err := t.Remove(ctx, request.Resource); err != nil { | ||
| return &runtime.DeleteResponse{Status: status.NewErrorStatus(err)} | ||
| } | ||
| return &runtime.DeleteResponse{Status: nil} | ||
| } | ||
|
|
||
| // Watch terraform resource | ||
| func (t *TerraformRuntime) Watch(ctx context.Context, request *runtime.WatchRequest) *runtime.WatchResponse { | ||
| return nil | ||
| } |
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