Fix --arch and --os flags to work correctly

Currently podman implements --override-arch and --overide-os
But Podman has made these aliases for --arch and --os.  No
reason to have to specify --override, since it is clear what
the user intends.

Currently if the user specifies an --override-arch field but the
image was previously pulled for a different Arch, podman run uses
the different arch.  This PR also fixes this issue.

Fixes: https://github.com/containers/podman/issues/8001

Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>

7 files changed, 58 insertions, 49 deletions

diff --git a/cmd/podman/common/create.go b/cmd/podman/common/create.go
index 17fba5427..915ff63b6 100644
--- a/cmd/podman/common/create.go
+++ b/cmd/podman/common/create.go
@@ -474,29 +474,29 @@ func DefineCreateFlags(cmd *cobra.Command, cf *ContainerCLIOpts) {
 	)
 	_ = cmd.RegisterFlagCompletionFunc(oomScoreAdjFlagName, completion.AutocompleteNone)
 
-	overrideArchFlagName := "override-arch"
+	archFlagName := "arch"
 	createFlags.StringVar(
-		&cf.OverrideArch,
-		overrideArchFlagName, "",
+		&cf.Arch,
+		archFlagName, "",
 		"use `ARCH` instead of the architecture of the machine for choosing images",
 	)
-	_ = cmd.RegisterFlagCompletionFunc(overrideArchFlagName, completion.AutocompleteNone)
+	_ = cmd.RegisterFlagCompletionFunc(archFlagName, completion.AutocompleteArch)
 
-	overrideOSFlagName := "override-os"
+	osFlagName := "os"
 	createFlags.StringVar(
-		&cf.OverrideOS,
-		overrideOSFlagName, "",
+		&cf.OS,
+		osFlagName, "",
 		"use `OS` instead of the running OS for choosing images",
 	)
-	_ = cmd.RegisterFlagCompletionFunc(overrideOSFlagName, completion.AutocompleteNone)
+	_ = cmd.RegisterFlagCompletionFunc(osFlagName, completion.AutocompleteOS)
 
-	overrideVariantFlagName := "override-variant"
+	variantFlagName := "variant"
 	createFlags.StringVar(
-		&cf.OverrideVariant,
-		overrideVariantFlagName, "",
+		&cf.Variant,
+		variantFlagName, "",
 		"Use _VARIANT_ instead of the running architecture variant for choosing images",
 	)
-	_ = cmd.RegisterFlagCompletionFunc(overrideVariantFlagName, completion.AutocompleteNone)
+	_ = cmd.RegisterFlagCompletionFunc(variantFlagName, completion.AutocompleteNone)
 
 	pidFlagName := "pid"
 	createFlags.String(
@@ -516,7 +516,7 @@ func DefineCreateFlags(cmd *cobra.Command, cf *ContainerCLIOpts) {
 	createFlags.StringVar(
 		&cf.Platform,
 		platformFlagName, "",
-		"Specify the platform for selecting the image.  (Conflicts with override-arch and override-os)",
+		"Specify the platform for selecting the image.  (Conflicts with --arch and --os)",
 	)
 	_ = cmd.RegisterFlagCompletionFunc(platformFlagName, completion.AutocompleteNone)
 
diff --git a/cmd/podman/common/create_opts.go b/cmd/podman/common/create_opts.go
index f3918d233..d86a6d364 100644
--- a/cmd/podman/common/create_opts.go
+++ b/cmd/podman/common/create_opts.go
@@ -74,9 +74,9 @@ type ContainerCLIOpts struct {
 	NoHealthCheck     bool
 	OOMKillDisable    bool
 	OOMScoreAdj       int
-	OverrideArch      string
-	OverrideOS        string
-	OverrideVariant   string
+	Arch              string
+	OS                string
+	Variant           string
 	PID               string
 	PIDsLimit         *int64
 	Platform          string
@@ -347,9 +347,9 @@ func ContainerCreateToContainerCLIOpts(cc handlers.CreateContainerConfig, cgroup
 		LogOptions:       stringMaptoArray(cc.HostConfig.LogConfig.Config),
 		Name:             cc.Name,
 		OOMScoreAdj:      cc.HostConfig.OomScoreAdj,
-		OverrideArch:     "",
-		OverrideOS:       "",
-		OverrideVariant:  "",
+		Arch:             "",
+		OS:               "",
+		Variant:          "",
 		PID:              string(cc.HostConfig.PidMode),
 		PIDsLimit:        cc.HostConfig.PidsLimit,
 		Privileged:       cc.HostConfig.Privileged,
diff --git a/cmd/podman/containers/create.go b/cmd/podman/containers/create.go
index 420813ba9..5c6c773eb 100644
--- a/cmd/podman/containers/create.go
+++ b/cmd/podman/containers/create.go
@@ -237,17 +237,20 @@ func pullImage(imageName string) (string, error) {
 		imageMissing = !br.Value
 	}
 
-	if cliVals.Platform != "" {
-		if cliVals.OverrideArch != "" || cliVals.OverrideOS != "" {
-			return "", errors.Errorf("--platform option can not be specified with --override-arch or --override-os")
-		}
-		split := strings.SplitN(cliVals.Platform, "/", 2)
-		cliVals.OverrideOS = split[0]
-		if len(split) > 1 {
-			cliVals.OverrideArch = split[1]
+	if cliVals.Platform != "" || cliVals.Arch != "" || cliVals.OS != "" {
+		if cliVals.Platform != "" {
+			if cliVals.Arch != "" || cliVals.OS != "" {
+				return "", errors.Errorf("--platform option can not be specified with --arch or --os")
+			}
+			split := strings.SplitN(cliVals.Platform, "/", 2)
+			cliVals.OS = split[0]
+			if len(split) > 1 {
+				cliVals.Arch = split[1]
+			}
 		}
+
 		if pullPolicy != config.PullImageAlways {
-			logrus.Info("--platform causes the pull policy to be \"always\"")
+			logrus.Info("--platform --arch and --os causes the pull policy to be \"always\"")
 			pullPolicy = config.PullImageAlways
 		}
 	}
@@ -259,9 +262,9 @@ func pullImage(imageName string) (string, error) {
 		pullReport, pullErr := registry.ImageEngine().Pull(registry.GetContext(), imageName, entities.ImagePullOptions{
 			Authfile:        cliVals.Authfile,
 			Quiet:           cliVals.Quiet,
-			OverrideArch:    cliVals.OverrideArch,
-			OverrideOS:      cliVals.OverrideOS,
-			OverrideVariant: cliVals.OverrideVariant,
+			Arch:            cliVals.Arch,
+			OS:              cliVals.OS,
+			Variant:         cliVals.Variant,
 			SignaturePolicy: cliVals.SignaturePolicy,
 			PullPolicy:      pullPolicy,
 		})
diff --git a/cmd/podman/images/pull.go b/cmd/podman/images/pull.go
index 2d881a906..fe92baebe 100644
--- a/cmd/podman/images/pull.go
+++ b/cmd/podman/images/pull.go
@@ -84,20 +84,20 @@ func pullFlags(cmd *cobra.Command) {
 	flags.StringVar(&pullOptions.CredentialsCLI, credsFlagName, "", "`Credentials` (USERNAME:PASSWORD) to use for authenticating to a registry")
 	_ = cmd.RegisterFlagCompletionFunc(credsFlagName, completion.AutocompleteNone)
 
-	overrideArchFlagName := "override-arch"
-	flags.StringVar(&pullOptions.OverrideArch, overrideArchFlagName, "", "Use `ARCH` instead of the architecture of the machine for choosing images")
-	_ = cmd.RegisterFlagCompletionFunc(overrideArchFlagName, completion.AutocompleteNone)
+	archFlagName := "arch"
+	flags.StringVar(&pullOptions.Arch, archFlagName, "", "Use `ARCH` instead of the architecture of the machine for choosing images")
+	_ = cmd.RegisterFlagCompletionFunc(archFlagName, completion.AutocompleteArch)
 
-	overrideOsFlagName := "override-os"
-	flags.StringVar(&pullOptions.OverrideOS, overrideOsFlagName, "", "Use `OS` instead of the running OS for choosing images")
-	_ = cmd.RegisterFlagCompletionFunc(overrideOsFlagName, completion.AutocompleteNone)
+	osFlagName := "os"
+	flags.StringVar(&pullOptions.OS, osFlagName, "", "Use `OS` instead of the running OS for choosing images")
+	_ = cmd.RegisterFlagCompletionFunc(osFlagName, completion.AutocompleteOS)
 
-	overrideVariantFlagName := "override-variant"
-	flags.StringVar(&pullOptions.OverrideVariant, overrideVariantFlagName, "", " use VARIANT instead of the running architecture variant for choosing images")
-	_ = cmd.RegisterFlagCompletionFunc(overrideVariantFlagName, completion.AutocompleteNone)
+	variantFlagName := "variant"
+	flags.StringVar(&pullOptions.Variant, variantFlagName, "", " use VARIANT instead of the running architecture variant for choosing images")
+	_ = cmd.RegisterFlagCompletionFunc(variantFlagName, completion.AutocompleteNone)
 
 	platformFlagName := "platform"
-	flags.String(platformFlagName, "", "Specify the platform for selecting the image.  (Conflicts with override-arch and override-os)")
+	flags.String(platformFlagName, "", "Specify the platform for selecting the image.  (Conflicts with arch and os)")
 	_ = cmd.RegisterFlagCompletionFunc(platformFlagName, completion.AutocompleteNone)
 
 	flags.Bool("disable-content-trust", false, "This is a Docker specific option and is a NOOP")
@@ -138,13 +138,13 @@ func imagePull(cmd *cobra.Command, args []string) error {
 		return err
 	}
 	if platform != "" {
-		if pullOptions.OverrideArch != "" || pullOptions.OverrideOS != "" {
-			return errors.Errorf("--platform option can not be specified with --override-arch or --override-os")
+		if pullOptions.Arch != "" || pullOptions.OS != "" {
+			return errors.Errorf("--platform option can not be specified with --arch or --os")
 		}
 		split := strings.SplitN(platform, "/", 2)
-		pullOptions.OverrideOS = split[0]
+		pullOptions.OS = split[0]
 		if len(split) > 1 {
-			pullOptions.OverrideArch = split[1]
+			pullOptions.Arch = split[1]
 		}
 	}
 
diff --git a/cmd/podman/manifest/add.go b/cmd/podman/manifest/add.go
index cb0838eeb..b33f01c10 100644
--- a/cmd/podman/manifest/add.go
+++ b/cmd/podman/manifest/add.go
@@ -52,7 +52,7 @@ func init() {
 
 	archFlagName := "arch"
 	flags.StringVar(&manifestAddOpts.Arch, archFlagName, "", "override the `architecture` of the specified image")
-	_ = addCmd.RegisterFlagCompletionFunc(archFlagName, completion.AutocompleteNone)
+	_ = addCmd.RegisterFlagCompletionFunc(archFlagName, completion.AutocompleteArch)
 
 	authfileFlagName := "authfile"
 	flags.StringVar(&manifestAddOpts.Authfile, authfileFlagName, auth.GetDefaultAuthFile(), "path of the authentication file. Use REGISTRY_AUTH_FILE environment variable to override")
@@ -72,7 +72,7 @@ func init() {
 
 	osFlagName := "os"
 	flags.StringVar(&manifestAddOpts.OS, osFlagName, "", "override the `OS` of the specified image")
-	_ = addCmd.RegisterFlagCompletionFunc(osFlagName, completion.AutocompleteNone)
+	_ = addCmd.RegisterFlagCompletionFunc(osFlagName, completion.AutocompleteOS)
 
 	osVersionFlagName := "os-version"
 	flags.StringVar(&manifestAddOpts.OSVersion, osVersionFlagName, "", "override the OS `version` of the specified image")
diff --git a/cmd/podman/manifest/annotate.go b/cmd/podman/manifest/annotate.go
index 71017e0ec..7c4f5ad01 100644
--- a/cmd/podman/manifest/annotate.go
+++ b/cmd/podman/manifest/annotate.go
@@ -39,7 +39,7 @@ func init() {
 
 	archFlagName := "arch"
 	flags.StringVar(&manifestAnnotateOpts.Arch, archFlagName, "", "override the `architecture` of the specified image")
-	_ = annotateCmd.RegisterFlagCompletionFunc(archFlagName, completion.AutocompleteNone)
+	_ = annotateCmd.RegisterFlagCompletionFunc(archFlagName, completion.AutocompleteArch)
 
 	featuresFlagName := "features"
 	flags.StringSliceVar(&manifestAnnotateOpts.Features, featuresFlagName, nil, "override the `features` of the specified image")
@@ -47,7 +47,7 @@ func init() {
 
 	osFlagName := "os"
 	flags.StringVar(&manifestAnnotateOpts.OS, osFlagName, "", "override the `OS` of the specified image")
-	_ = annotateCmd.RegisterFlagCompletionFunc(osFlagName, completion.AutocompleteNone)
+	_ = annotateCmd.RegisterFlagCompletionFunc(osFlagName, completion.AutocompleteOS)
 
 	osFeaturesFlagName := "os-features"
 	flags.StringSliceVar(&manifestAnnotateOpts.OSFeatures, osFeaturesFlagName, nil, "override the OS `features` of the specified image")
diff --git a/cmd/podman/utils/alias.go b/cmd/podman/utils/alias.go
index 469233b59..8d089920b 100644
--- a/cmd/podman/utils/alias.go
+++ b/cmd/podman/utils/alias.go
@@ -25,6 +25,12 @@ func AliasFlags(f *pflag.FlagSet, name string) pflag.NormalizedName {
 		name = "external"
 	case "purge":
 		name = "rm"
+	case "override-arch":
+		name = "arch"
+	case "override-os":
+		name = "os"
+	case "override-variant":
+		name = "variant"
 	}
 	return pflag.NormalizedName(name)
 }