feat: Add all linux platforms

process/drivers/opts/build.rs

@@ -20,8 +20,7 @@ pub struct BuildOpts<'scope> {
     #[builder(into)]
     pub containerfile: Cow<'scope, Path>,
 
-    #[builder(default)]
-    pub platform: Platform,
+    pub platform: Option<Platform>,
 
     #[builder(default)]
     pub host_network: bool,
@@ -102,8 +101,7 @@ pub struct BuildTagPushOpts<'scope> {
     pub squash: bool,
 
     /// The platform to build the image on.
-    #[builder(default)]
-    pub platform: Platform,
+    pub platform: Option<Platform>,
 
     /// Runs the build with elevated privileges
     #[builder(default)]

process/drivers/opts/ci.rs

@@ -12,8 +12,7 @@ pub struct GenerateTagsOpts<'scope> {
     #[builder(into)]
     pub alt_tags: Option<Vec<Cow<'scope, str>>>,
 
-    #[builder(default)]
-    pub platform: Platform,
+    pub platform: Option<Platform>,
 }
 
 #[derive(Debug, Clone, Builder)]

process/drivers/opts/inspect.rs

@@ -9,6 +9,5 @@ pub struct GetMetadataOpts<'scope> {
     #[builder(into)]
     pub image: &'scope Reference,
 
-    #[builder(default)]
-    pub platform: Platform,
+    pub platform: Option<Platform>,
 }

process/drivers/opts/rechunk.rs

@@ -16,8 +16,7 @@ pub struct RechunkOpts<'scope> {
     #[builder(into)]
     pub containerfile: Cow<'scope, Path>,
 
-    #[builder(default)]
-    pub platform: Platform,
+    pub platform: Option<Platform>,
     pub version: Cow<'scope, str>,
     pub name: Cow<'scope, str>,
     pub description: Cow<'scope, str>,

process/drivers/opts/signing.rs

@@ -114,6 +114,5 @@ pub struct SignVerifyOpts<'scope> {
     #[builder(default = 1)]
     pub retry_count: u8,
 
-    #[builder(default)]
-    pub platform: Platform,
+    pub platform: Option<Platform>,
 }