mirror of
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91 lines
2.3 KiB
Go
91 lines
2.3 KiB
Go
package service
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import (
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"context"
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"fmt"
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"github.com/spf13/cobra"
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"uncloud/internal/api"
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"uncloud/internal/cli"
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)
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type runOptions struct {
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command []string
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image string
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machine string
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mode string
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name string
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publish []string
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cluster string
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}
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func NewRunCommand() *cobra.Command {
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opts := runOptions{}
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cmd := &cobra.Command{
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Use: "run IMAGE [COMMAND...]",
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Short: "Run a service.",
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Args: cobra.MinimumNArgs(1),
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RunE: func(cmd *cobra.Command, args []string) error {
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uncli := cmd.Context().Value("cli").(*cli.CLI)
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opts.image = args[0]
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if len(args) > 1 {
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opts.command = args[1:]
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}
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return run(cmd.Context(), uncli, opts)
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},
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}
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// TODO: implement placement constraints and translate --machine to a constraint.
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//cmd.Flags().StringVarP(
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// &opts.machine, "machine", "m", "",
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// "Name or ID of the machine to run the service on. (default is first available)",
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//)
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cmd.Flags().StringVar(&opts.mode, "mode", api.ServiceModeReplicated,
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fmt.Sprintf("Replication mode of the service: either %q (a specified number of containers across "+
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"the machines) or %q (one container on every machine).",
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api.ServiceModeReplicated, api.ServiceModeGlobal))
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cmd.Flags().StringVarP(&opts.name, "name", "n", "",
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"Assign a name to the service. A random name is generated if not specified.")
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cmd.Flags().StringSliceVarP(&opts.publish, "publish", "p", nil,
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"Publish a service port to make it accessible outside the cluster. Can be specified multiple times. "+
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"Format: [load_balancer_port:]container_port[/protocol]")
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cmd.Flags().StringVarP(
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&opts.cluster, "cluster", "c", "",
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"Name of the cluster to run the service in. (default is the current cluster)",
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)
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return cmd
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}
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func run(ctx context.Context, uncli *cli.CLI, opts runOptions) error {
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switch opts.mode {
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case "", api.ServiceModeReplicated, api.ServiceModeGlobal:
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default:
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return fmt.Errorf("invalid replication mode: %q", opts.mode)
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}
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client, err := uncli.ConnectCluster(ctx, opts.cluster)
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if err != nil {
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return fmt.Errorf("connect to cluster: %w", err)
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}
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defer client.Close()
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spec := api.ServiceSpec{
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Container: api.ContainerSpec{
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Command: opts.command,
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Image: opts.image,
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},
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Mode: opts.mode,
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Name: opts.name,
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}
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if _, err = client.RunService(ctx, spec); err != nil {
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return fmt.Errorf("run service: %w", err)
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}
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return nil
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}
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