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b3f682453d
Multiple holos components rely on kustomize to modify the output of the upstream helm chart, for example patching a Deployment to inject the istio sidecar. The new holos cue based component system did not support running kustomize after helm template. This patch adds the kustomize execution if two fields are defined in the helm chart kind of cue output. The API spec is pretty loose in this patch but I'm proceeding for expedience and to inform the final API with more use cases as more components are migrated to cue.
60 lines
1.9 KiB
Go
60 lines
1.9 KiB
Go
package render
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import (
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"fmt"
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"github.com/holos-run/holos/pkg/cli/command"
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"github.com/holos-run/holos/pkg/holos"
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"github.com/holos-run/holos/pkg/internal/builder"
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"github.com/holos-run/holos/pkg/logger"
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"github.com/holos-run/holos/pkg/wrapper"
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"github.com/spf13/cobra"
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)
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func makeRenderRunFunc(cfg *holos.Config) command.RunFunc {
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return func(cmd *cobra.Command, args []string) error {
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if cfg.ClusterName() == "" {
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return wrapper.Wrap(fmt.Errorf("missing cluster name"))
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}
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ctx := cmd.Context()
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log := logger.FromContext(ctx)
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build := builder.New(builder.Entrypoints(args), builder.Cluster(cfg.ClusterName()))
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results, err := build.Run(cmd.Context())
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if err != nil {
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return wrapper.Wrap(err)
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}
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// TODO: Avoid accidental over-writes if to holos component instances result in
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// the same file path. Write files into a blank temporary directory, error if a
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// file exists, then move the directory into place.
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for _, result := range results {
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if result.Skip {
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continue
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}
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// API Objects
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path := result.Filename(cfg.WriteTo(), cfg.ClusterName())
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if err := result.Save(ctx, path, result.AccumulatedOutput()); err != nil {
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return wrapper.Wrap(err)
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}
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// Kustomization
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path = result.KustomizationFilename(cfg.WriteTo(), cfg.ClusterName())
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if err := result.Save(ctx, path, result.KsContent); err != nil {
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return wrapper.Wrap(err)
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}
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log.InfoContext(ctx, "rendered "+result.Name(), "status", "ok", "action", "rendered", "name", result.Name())
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}
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return nil
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}
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}
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// New returns the render subcommand for the root command
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func New(cfg *holos.Config) *cobra.Command {
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cmd := command.New("render [directory...]")
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cmd.Args = cobra.MinimumNArgs(1)
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cmd.Short = "write kubernetes api objects to the filesystem"
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cmd.Flags().SortFlags = false
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cmd.Flags().AddGoFlagSet(cfg.WriteFlagSet())
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cmd.Flags().AddGoFlagSet(cfg.ClusterFlagSet())
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cmd.RunE = makeRenderRunFunc(cfg)
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return cmd
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}
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