dfc214115b
Make use of existing modules and functions in order to output the merged configs. Added skip interpolation flag of variables, so that you can pipe the output back to stack deploy without much hassle. Signed-off-by: Stoica-Marcu Floris-Andrei <floris.sm@gmail.com> Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
61 lines
1.7 KiB
Go
61 lines
1.7 KiB
Go
package stack
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import (
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"fmt"
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"github.com/docker/cli/cli"
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"github.com/docker/cli/cli/command"
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"github.com/docker/cli/cli/command/stack/loader"
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"github.com/docker/cli/cli/command/stack/options"
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composeLoader "github.com/docker/cli/cli/compose/loader"
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composetypes "github.com/docker/cli/cli/compose/types"
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"github.com/spf13/cobra"
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yaml "gopkg.in/yaml.v2"
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)
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func newConfigCommand(dockerCli command.Cli) *cobra.Command {
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var opts options.Config
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cmd := &cobra.Command{
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Use: "config [OPTIONS]",
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Short: "Outputs the final config file, after doing merges and interpolations",
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Args: cli.NoArgs,
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RunE: func(cmd *cobra.Command, args []string) error {
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configDetails, err := loader.GetConfigDetails(opts.Composefiles, dockerCli.In())
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if err != nil {
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return err
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}
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cfg, err := outputConfig(configDetails, opts.SkipInterpolation)
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if err != nil {
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return err
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}
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_, err = fmt.Fprintf(dockerCli.Out(), "%s", cfg)
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return err
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},
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}
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flags := cmd.Flags()
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flags.StringSliceVarP(&opts.Composefiles, "compose-file", "c", []string{}, `Path to a Compose file, or "-" to read from stdin`)
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flags.BoolVar(&opts.SkipInterpolation, "skip-interpolation", false, "Skip interpolation and output only merged config")
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return cmd
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}
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// outputConfig returns the merged and interpolated config file
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func outputConfig(configFiles composetypes.ConfigDetails, skipInterpolation bool) (string, error) {
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optsFunc := func(options *composeLoader.Options) {
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options.SkipInterpolation = skipInterpolation
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}
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config, err := composeLoader.Load(configFiles, optsFunc)
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if err != nil {
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return "", err
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}
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d, err := yaml.Marshal(&config)
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if err != nil {
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return "", err
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}
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return string(d), nil
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}
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