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-rw-r--r--admin.go15
1 files changed, 14 insertions, 1 deletions
diff --git a/admin.go b/admin.go
index d23c7db..674d06a 100644
--- a/admin.go
+++ b/admin.go
@@ -46,6 +46,17 @@ import (
"go.uber.org/zap/zapcore"
)
+func init() {
+ // The hard-coded default `DefaultAdminListen` can be overidden
+ // by setting the `CADDY_ADMIN` environment variable.
+ // The environment variable may be used by packagers to change
+ // the default admin address to something more appropriate for
+ // that platform. See #5317 for discussion.
+ if env, exists := os.LookupEnv("CADDY_ADMIN"); exists {
+ DefaultAdminListen = env
+ }
+}
+
// AdminConfig configures Caddy's API endpoint, which is used
// to manage Caddy while it is running.
type AdminConfig struct {
@@ -57,7 +68,9 @@ type AdminConfig struct {
// The address to which the admin endpoint's listener should
// bind itself. Can be any single network address that can be
- // parsed by Caddy. Accepts placeholders. Default: localhost:2019
+ // parsed by Caddy. Accepts placeholders.
+ // Default: the value of the `CADDY_ADMIN` environment variable,
+ // or `localhost:2019` otherwise.
Listen string `json:"listen,omitempty"`
// If true, CORS headers will be emitted, and requests to the