Merge pull request #3557 from rhatdan/env

Add support for --env-host

3 files changed, 27 insertions, 3 deletions

diff --git a/cmd/podman/shared/create.go b/cmd/podman/shared/create.go
index 60a01ff6d..be1a731cc 100644
--- a/cmd/podman/shared/create.go
+++ b/cmd/podman/shared/create.go
@@ -482,6 +482,16 @@ func ParseCreateOpts(ctx context.Context, c *GenericCLIResults, runtime *libpod.
 
 	// ENVIRONMENT VARIABLES
 	env := EnvVariablesFromData(data)
+	if c.Bool("env-host") {
+		for _, e := range os.Environ() {
+			pair := strings.SplitN(e, "=", 2)
+			if _, ok := env[pair[0]]; !ok {
+				if len(pair) > 1 {
+					env[pair[0]] = pair[1]
+				}
+			}
+		}
+	}
 	if err := parse.ReadKVStrings(env, c.StringSlice("env-file"), c.StringArray("env")); err != nil {
 		return nil, errors.Wrapf(err, "unable to process environment variables")
 	}
diff --git a/cmd/podman/shared/intermediate.go b/cmd/podman/shared/intermediate.go
index eecd1604c..855f84086 100644
--- a/cmd/podman/shared/intermediate.go
+++ b/cmd/podman/shared/intermediate.go
@@ -393,6 +393,7 @@ func NewIntermediateLayer(c *cliconfig.PodmanCommand, remote bool) GenericCLIRes
 	m["dns-search"] = newCRStringSlice(c, "dns-search")
 	m["entrypoint"] = newCRString(c, "entrypoint")
 	m["env"] = newCRStringArray(c, "env")
+	m["env-host"] = newCRBool(c, "env-host")
 	m["env-file"] = newCRStringSlice(c, "env-file")
 	m["expose"] = newCRStringSlice(c, "expose")
 	m["gidmap"] = newCRStringSlice(c, "gidmap")
diff --git a/cmd/podman/shared/parse/parse.go b/cmd/podman/shared/parse/parse.go
index 7bc2652cb..a77002235 100644
--- a/cmd/podman/shared/parse/parse.go
+++ b/cmd/podman/shared/parse/parse.go
@@ -112,9 +112,22 @@ func parseEnv(env map[string]string, line string) error {
 	if len(data) > 1 {
 		env[name] = data[1]
 	} else {
-		// if only a pass-through variable is given, clean it up.
-		val, _ := os.LookupEnv(name)
-		env[name] = val
+		if strings.HasSuffix(name, "*") {
+			name = strings.TrimSuffix(name, "*")
+			for _, e := range os.Environ() {
+				part := strings.SplitN(e, "=", 2)
+				if len(part) < 2 {
+					continue
+				}
+				if strings.HasPrefix(part[0], name) {
+					env[part[0]] = part[1]
+				}
+			}
+		} else {
+			// if only a pass-through variable is given, clean it up.
+			val, _ := os.LookupEnv(name)
+			env[name] = val
+		}
 	}
 	return nil
 }