Common Q&A document.

[zzjin]

Here are some common install/run questions.

status meaning:

:construction: under develop :memo: in disscussion :raising_hand: help wanted :white_check_mark: resolved

Root permission rela

Summary	Description	Cause	Issue	PR	Status
root User	sudo sealos run not works well	All command must run at root user, currently donot support run as sudoers or rootless	#1386, #690		:construction:

Fix:point_right:: using root user to exec commands.

Summary	Description	Cause	Issue	PR	Status
Single Cluster	sealos run without any ips	Currently sealos run must spec at least one master and one node	#1353 #1064	#1396	:white_check_mark:

Fix:point_right:: using atleast two machine(or multipass to start vms quickly)

System environment rela

Summary	Description	Cause	Issue	PR	Status
invalid argument "never" for " --pull" flag: strconv. ParseBool: parsing "never": invalid syntax	Cannot run sealos run command	System has buildah installed but version do not match sealos's requirement	#1961		:white_check_mark:

Fix:point_right:: Delete System's buildah and using sealos's build-in version.

Summary	Description	Cause	Issue	PR	Status
Cannot install sealos cluster when offline	Exec apparmor_parser file not found	Default Set disableApparmor=false, Update Image version	#1755	labring/cluster-image@8b4bb02, labring/cluster-image#211	:white_check_mark:
Re-Run sealos fail on a sealos reseted cluster	Re-Run failed with container runtime is not running or token exit status 1 and similar errors	sealos reset donot clearly cleaned all System enviroments	#1866, #1998	#1936	:white_check_mark:

Fix:point_right:: Upgrade to 4.1.4-rc1 and above!

Network connective rela

Summary	Description	Cause	Issue	PR	Status
Validate Fail	couldn't validate the identity of the API Server, something like 10.103.97.2:6443 fail	due to connective block between masters and nodes			:memo:
Offline run *.tar.gz	Install from *.tar.gz offline image package，make offline installation easier		#1770	#1861	:white_check_mark:
Support customize hostname under cluster file	It is useful to specific hostname under cluster file when there are many nodes.		#1729, #1449		:raising_hand:
Support extenal etcd cluster		Use kubeadm to customize	#1612		:raising_hand:

Fix:point_right:: double check masters and nodes can access each other at any port! Not only ssh(22) port but also api-server(6443) and many others as different serivces/pods needs different ports open. Especially checking security group when using aws/aliyun infras. Currently we suggest allow all2all under internal/private vpc/subnets.

Storage requirements rela

Summary	Description	Cause	Issue	PR	Status
Download Image Fail	sealos run CLusterImage fail	lack of disk spaces			:raising_hand:
Download Image Fail	sealos build still fail while pulling an image from the private registry	lack of memory due to directio bug	#1314		:construction:
Change install directory	sealos default install on root home dir but want to change this location	small root directory size		#1592	:white_check_mark:

Fix:point_right:: add more storages and/or memories!

After install and run

Summary	Description	Cause	Issue	PR	Status
How to change masters/nodes ip	there is no document or command to support change nodes ips		#1406		:raising_hand:
How to access private registry	you can access private registry directly		#1412	#1426	🚧
--cmd not work	--cmd except to merge build-in commands	Upgrade to 4.1.4-rc1 and above	#1969		:white_check_mark:
error converting YAML to JSON	apply clusterfile shows error	Rename *.yaml.tmpl file to *.yaml.tmpl.bak, as .tmpl suffix file will be rendered by default	#1454		:white_check_mark:
Manage masters/nodes fail at running clusters		Mount data is missing, need update	#1402	#1429	:construction:
Some masters/nodes fail to start after reboot machine		Hosts data is missing, need update	#1619, #1621, #1894		:construction:
Running sealos other than master0		many codes need to be update	#1276,#1567	#1292	:white_check_mark:

Summary	Description	Cause	Issue	PR	Status
Add new masters fail		Time created by sealctl token do not synced or expired	#1783	#1936	:white_check_mark:

Fix:point_right:: Upgrade to 4.1.4-rc1 and above!

Cluster image rela

Summary	Description	Cause	Issue	PR	Status
Build image with digest failed	Some images like cilium, have digest inside, sealos build will fail	It's image-shim witch needs to deal with this problem	#1460	#1466	:white_check_mark:
Pull arm image at x86 platform			#1929		:white_check_mark:
Pull image do not update local's		Default pull policy is hardcoded missing, witch do not update for local's already pulled image	#1877	#1921	:white_check_mark:

Fix:point_right:: Upgrade to 4.1.4-rc1 and above!

Summary	Description	Cause	Issue	PR	Status
Simplest way to set custom parameters	When one want to add custom kubeadm init parameters, must create an Clusterfile, and put it into Clusterfile	Add Clusterfile into image to run as default Clusterfile	#1459	#1591	:white_check_mark:
How to use sealos build-in private registry		docs/design/private-registry	#1412		:white_check_mark:
ClusterImage ingress-nginx pod keeps pending		clusterfile nodeselector error	#1405		:white_check_mark:
Merge ClusterImage using env	One can set env vars pass to ClusterImage to override tepmlates	#1724	#1480,#1733		:white_check_mark:
kuboard install fail		Use kuboard with tested kubernetes version	#1909,eip-work/kuboard-press#328		:white_check_mark:
No matches for kind PodSecurityPolicy	Install kubernetes:v1.25 with calico	When install k8s v1.25, using labring/calico:v3.24.1	#1775		:white_check_mark:
sealos can't load docker image		It's sealos's design, witch deal with ClusterImage: build-example-cloudimage/中文	#1655		:white_check_mark:

Before contributing to docs, please check out docs contributing guide.

[SignorMercurio]

Before contributing to docs, please check out docs contributing guide.

[cuisongliu]

https://github.com/labring/sealos/issues/2008#issuecomment-1305269715

[cuisongliu]

https://github.com/labring/sealos/issues/2757

[cuisongliu]

https://github.com/labring/sealos/issues/2370

[shu-qian]

Hello, may I ask what kind of work is required for this problem?