fn: remove tini option & env variable (#1301)

api/agent/agent.go

@@ -226,7 +226,6 @@ func NewDockerDriver(cfg *Config) (drivers.Driver, error) {
 		PreForkNetworks:      cfg.PreForkNetworks,
 		MaxTmpFsInodes:       cfg.MaxTmpFsInodes,
 		EnableReadOnlyRootFs: !cfg.DisableReadOnlyRootFs,
-		EnableTini:           !cfg.DisableTini,
 		MaxRetries:           cfg.MaxDockerRetries,
 	})
 }

api/agent/config.go

@@ -31,7 +31,6 @@ type Config struct {
 	EnableNBResourceTracker bool          `json:"enable_nb_resource_tracker"`
 	MaxTmpFsInodes          uint64        `json:"max_tmpfs_inodes"`
 	DisableReadOnlyRootFs   bool          `json:"disable_readonly_rootfs"`
-	DisableTini             bool          `json:"disable_tini"`
 	DisableDebugUserLogs    bool          `json:"disable_debug_user_logs"`
 	IOFSEnableTmpfs         bool          `json:"iofs_enable_tmpfs"`
 	IOFSAgentPath           string        `json:"iofs_path"`
@@ -83,8 +82,6 @@ const (
 	EnvMaxTmpFsInodes = "FN_MAX_TMPFS_INODES"
 	// EnvDisableReadOnlyRootFs makes the root fs for a container have rw permissions, by default it is read only
 	EnvDisableReadOnlyRootFs = "FN_DISABLE_READONLY_ROOTFS"
-	// EnvDisableTini runs containers without using the --init option, for tini pid 1 action
-	EnvDisableTini = "FN_DISABLE_TINI"
 	// EnvDisableDebugUserLogs disables user function logs being logged at level debug. wise to enable for production.
 	EnvDisableDebugUserLogs = "FN_DISABLE_DEBUG_USER_LOGS"
 

api/agent/drivers/docker/docker.go

@@ -231,7 +231,7 @@ func (drv *DockerDriver) CreateCookie(ctx context.Context, task drivers.Containe
 		},
 		HostConfig: &docker.HostConfig{
 			ReadonlyRootfs: drv.conf.EnableReadOnlyRootFs,
-			Init:           drv.conf.EnableTini,
+			Init:           true,
 		},
 	}
 

api/agent/drivers/driver.go

@@ -251,7 +251,6 @@ type Config struct {
 	PreForkNetworks      string `json:"pre_fork_networks"`
 	MaxTmpFsInodes       uint64 `json:"max_tmpfs_inodes"`
 	EnableReadOnlyRootFs bool   `json:"enable_readonly_rootfs"`
-	EnableTini           bool   `json:"enable_tini"`
 	MaxRetries           uint64 `json:"max_retries"`
 }