feat(iam): allow import key using file path (scaleway#5052)

Author: jtherin

cmd/scw/testdata/test-all-usage-iam-ssh-key-create-usage.golden

@@ -11,7 +11,7 @@ EXAMPLES:
 
 ARGS:
   name=<generated>   Name of the SSH key. Max length is 1000
-  public-key         SSH public key. Currently only the ssh-rsa, ssh-dss (DSA), ssh-ed25519 and ecdsa keys with NIST curves are supported. Max length is 65000
+  public-key         SSH public key. Currently only the ssh-rsa, ssh-dss (DSA), ssh-ed25519 and ecdsa keys with NIST curves are supported. Max length is 65000 (Support file loading with @/path/to/file)
   [project-id]       Project ID to use. If none is passed the default project ID will be used
 
 FLAGS:

internal/namespaces/iam/v1alpha1/custom.go

@@ -52,6 +52,8 @@ func GetCommands() *core.Commands {
 	cmds.MustFind("iam", "policy", "create").Override(iamPolicyCreateBuilder)
 	cmds.MustFind("iam", "policy", "get").Override(iamPolicyGetBuilder)
 
+	cmds.MustFind("iam", "ssh-key", "create").ArgSpecs.GetByName("public-key").CanLoadFile = true
+
 	iamCmd := cmds.MustFind("iam", "api-key", "get")
 	iamCmd.ArgsType = iamApiKeyCustomBuilder.argType
 	iamCmd.ArgSpecs = iamApiKeyCustomBuilder.argSpecs