@@ -754,7 +754,7 @@ definitions:

         default: false

       Env:

         description: |

-          A list of environment variables to set inside the container in the form `["VAR=value", ...]`

+          A list of environment variables to set inside the container in the form `["VAR=value", ...]`. A variable without `=` is removed from the environment, rather than to have an empty value.

         type: "array"

         items:

           type: "string"

@@ -4,11 +4,14 @@ import "testing"

 func TestReplaceAndAppendEnvVars(t *testing.T) {

 	var (

-		d = []string{"HOME=/"}

-		o = []string{"HOME=/root", "TERM=xterm"}

+		d = []string{"HOME=/", "FOO=foo_default"}

+		// remove FOO from env

+		// remove BAR from env (nop)

+		o = []string{"HOME=/root", "TERM=xterm", "FOO", "BAR"}

 	)

 	env := ReplaceOrAppendEnvValues(d, o)

+	t.Logf("default=%v, override=%v, result=%v", d, o, env)

 	if len(env) != 2 {

 		t.Fatalf("expected len of 2 got %d", len(env))

 	}