sonic-buildimage/rules/docker-nat.mk
Mai Bui e8b1722005
[docker-nat] limit privileged flag for nat container (#17756)
### Why I did it
HLD implementation: Container Hardening (https://github.com/sonic-net/SONiC/pull/1364)
### How I did it
Reduce linux capabilities in privileged flag

#### How to verify it
Check container's settings: Privileged is false and container only has default Linux caps, does not have extended caps.
```
admin@vlab-01:~$ docker inspect nat | grep Privi
            "Privileged": false,


admin@vlab-01:~$ docker exec -it nat bash
root@vlab-01:/# capsh --print
Current: cap_chown,cap_dac_override,cap_fowner,cap_fsetid,cap_kill,cap_setgid,cap_setuid,cap_setpcap,cap_net_bind_service,cap_net_raw,cap_sys_chroot,cap_mknod,cap_audit_write,cap_setfcap=ep
```
2024-01-26 10:43:35 -08:00

43 lines
1.4 KiB
Makefile

# docker image for nat
DOCKER_NAT_STEM = docker-nat
DOCKER_NAT = $(DOCKER_NAT_STEM).gz
DOCKER_NAT_DBG = $(DOCKER_NAT_STEM)-$(DBG_IMAGE_MARK).gz
$(DOCKER_NAT)_PATH = $(DOCKERS_PATH)/$(DOCKER_NAT_STEM)
$(DOCKER_NAT)_DEPENDS += $(SWSS) $(IPTABLESIP4TC) $(IPTABLESIP6TC) $(IPTABLESIPTC) $(IPXTABLES12) $(IPTABLES)
$(DOCKER_NAT)_DBG_DEPENDS = $($(DOCKER_SWSS_LAYER_BULLSEYE)_DBG_DEPENDS)
$(DOCKER_NAT)_DBG_DEPENDS += $(SWSS_DBG) $(LIBSWSSCOMMON_DBG)
$(DOCKER_NAT)_DBG_IMAGE_PACKAGES = $($(DOCKER_SWSS_LAYER_BULLSEYE)_DBG_IMAGE_PACKAGES)
$(DOCKER_NAT)_LOAD_DOCKERS += $(DOCKER_SWSS_LAYER_BULLSEYE)
$(DOCKER_NAT)_VERSION = 1.0.0
$(DOCKER_NAT)_PACKAGE_NAME = nat
$(DOCKER_NAT)_WARM_SHUTDOWN_BEFORE = swss
$(DOCKER_NAT)_FAST_SHUTDOWN_BEFORE = swss
ifeq ($(INCLUDE_NAT), y)
SONIC_DOCKER_IMAGES += $(DOCKER_NAT)
SONIC_INSTALL_DOCKER_IMAGES += $(DOCKER_NAT)
endif
ifeq ($(INCLUDE_NAT), y)
SONIC_DOCKER_DBG_IMAGES += $(DOCKER_NAT_DBG)
SONIC_INSTALL_DOCKER_DBG_IMAGES += $(DOCKER_NAT_DBG)
endif
$(DOCKER_NAT)_CONTAINER_NAME = nat
$(DOCKER_NAT)_RUN_OPT += -t --cap-add=NET_ADMIN
$(DOCKER_NAT)_RUN_OPT += -v /etc/sonic:/etc/sonic:ro
$(DOCKER_NAT)_RUN_OPT += -v /etc/timezone:/etc/timezone:ro
$(DOCKER_NAT)_RUN_OPT += -v /host/warmboot:/var/warmboot
$(DOCKER_NAT)_FILES += $(SUPERVISOR_PROC_EXIT_LISTENER_SCRIPT)
$(DOCKER_NAT)_BASE_IMAGE_FILES += natctl:/usr/bin/natctl
SONIC_BULLSEYE_DOCKERS += $(DOCKER_NAT)
SONIC_BULLSEYE_DBG_DOCKERS += $(DOCKER_NAT_DBG)