From 373227e717fac82af5ea8d71e611a3df1c59054e Mon Sep 17 00:00:00 2001 From: Christian Poessinger Date: Mon, 9 May 2022 18:51:22 +0200 Subject: container: T2216: use warning over exception when container image does not exist --- src/conf_mode/container.py | 27 +++++++++++++++++++-------- 1 file changed, 19 insertions(+), 8 deletions(-) diff --git a/src/conf_mode/container.py b/src/conf_mode/container.py index 7e1dc5911..2110fd9e0 100755 --- a/src/conf_mode/container.py +++ b/src/conf_mode/container.py @@ -15,13 +15,13 @@ # along with this program. If not, see . import os -import json from ipaddress import ip_address from ipaddress import ip_network from time import sleep from json import dumps as json_write +from vyos.base import Warning from vyos.config import Config from vyos.configdict import dict_merge from vyos.configdict import node_changed @@ -110,15 +110,21 @@ def verify(container): if 'image' not in container_config: raise ConfigError(f'Container image for "{name}" is mandatory!') - # verify container image exists locally - image = container_config['image'] - # Check if requested container image exists locally. If it does not - # exist locally - inform the user. + # exist locally - inform the user. This is required as there is a + # shared container image storage accross all VyOS images. A user can + # delete a container image from the system, boot into another version + # of VyOS and then it would fail to boot. This is to prevent any + # configuration error when container images are deleted from the + # global storage. A per image local storage would be a super waste + # of diskspace as there will be a full copy (up tu several GB/image) + # on upgrade. This is the "cheapest" and fastest solution in terms + # of image upgrade and deletion. + image = container_config['image'] if run(f'podman image exists {image}') != 0: - raise ConfigError(f'Image "{image}" used in contianer "{name}" does not exist '\ - f'locally.\nPlease use "add container image {image}" to add it '\ - 'to the system!') + Warning(f'Image "{image}" used in contianer "{name}" does not exist '\ + f'locally. Please use "add container image {image}" to add it '\ + f'to the system! Container "{name}" will not be started!') if 'network' in container_config: if len(container_config['network']) > 1: @@ -279,6 +285,11 @@ def apply(container): for name, container_config in container['name'].items(): image = container_config['image'] + if run(f'podman image exists {image}') != 0: + # container image does not exist locally - user already got + # informed by a WARNING in verfiy() - bail out early + continue + if 'disable' in container_config: # check if there is a container by that name running tmp = _cmd('podman ps -a --format "{{.Names}}"') -- cgit v1.2.3