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feat(push): --platform flag to push a specific platform of a multi-platform image

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This commit is contained in:
Pasha Sviderski
2025-09-30 18:59:03 +10:00
parent ae458d260f
commit 332e7bca90
3 changed files with 51 additions and 13 deletions
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cmd/uncloud/image/push.go
+26 -4
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@@ -4,8 +4,10 @@ import (
"context"
"fmt"
"github.com/containerd/platforms"
"github.com/docker/compose/v2/pkg/progress"
"github.com/psviderski/uncloud/internal/cli"
"github.com/psviderski/uncloud/pkg/client"
"github.com/spf13/cobra"
)
@@ -13,6 +15,7 @@ type pushOptions struct {
image string
machines []string
context string
platform string
}
func NewPushCommand() *cobra.Command {
@@ -30,7 +33,10 @@ The image is uploaded to the machine which CLI is connected to (default) or the
uc image push myapp:latest -m machine1
# Push image to multiple machines.
uc image push myapp:latest -m machine1,machine2,machine3`,
uc image push myapp:latest -m machine1,machine2,machine3
# Push a specific platform of a multi-platform image.
uc image push myapp:latest --platform linux/amd64`,
Args: cobra.ExactArgs(1),
RunE: func(cmd *cobra.Command, args []string) error {
uncli := cmd.Context().Value("cli").(*cli.CLI)
@@ -43,6 +49,11 @@ The image is uploaded to the machine which CLI is connected to (default) or the
cmd.Flags().StringSliceVarP(&opts.machines, "machine", "m", nil,
"Machine names to push the image to. Can be specified multiple times or as a comma-separated "+
"list of machine names. (default is connected machine)")
cmd.Flags().StringVar(
&opts.platform, "platform", "",
"Push a specific platform of a multi-platform image (e.g., linux/amd64, linux/arm64).\n"+
"Local Docker must be configured to use containerd image store to support multi-platform images.",
)
cmd.Flags().StringVarP(
&opts.context, "context", "c", "",
"Name of the cluster context. (default is the current context)",
@@ -52,16 +63,27 @@ The image is uploaded to the machine which CLI is connected to (default) or the
}
func push(ctx context.Context, uncli *cli.CLI, opts pushOptions) error {
client, err := uncli.ConnectCluster(ctx, opts.context)
clusterClient, err := uncli.ConnectCluster(ctx, opts.context)
if err != nil {
return fmt.Errorf("connect to cluster: %w", err)
}
defer client.Close()
defer clusterClient.Close()
machines := cli.ExpandCommaSeparatedValues(opts.machines)
pushOpts := client.PushImageOptions{
Machines: machines,
}
if opts.platform != "" {
p, err := platforms.Parse(opts.platform)
if err != nil {
return fmt.Errorf("invalid platform '%s': %w", opts.platform, err)
}
pushOpts.Platform = &p
}
return progress.RunWithTitle(ctx, func(ctx context.Context) error {
if err = client.PushImage(ctx, opts.image, machines); err != nil {
if err = clusterClient.PushImage(ctx, opts.image, pushOpts); err != nil {
return fmt.Errorf("push image to cluster: %w", err)
}
return nil