New course labs query

this is my installation using latest labs there were some warning messages for master node installation
[preflight] Running pre-flight checks
[WARNING Hostname]: hostname "cp" could not be reached
[WARNING Hostname]: hostname "cp": lookup cp on 127.0.0.53:53: server misbehaving
[preflight] Pulling images required for setting up a Kubernetes cluster
[preflight] This might take a minute or two, depending on the speed of your internet connection
[preflight] You can also perform this action in beforehand using 'kubeadm config images pull'
[certs] Using certificateDir folder "/etc/kubernetes/pki"
[certs] Generating "ca" certificate and key
[certs] Generating "apiserver" certificate and key
[certs] apiserver serving cert is signed for DNS names [cp kubernetes kubernetes.default kubernetes.default.svc kubernetes.default.svc.cluster.local] and IPs [10.96.0.1 172.31.28.212]
[certs] Generating "apiserver-kubelet-client" certificate and key
[certs] Generating "front-proxy-ca" certificate and key
[certs] Generating "front-proxy-client" certificate and key
[certs] Generating "etcd/ca" certificate and key
[certs] Generating "etcd/server" certificate and key
post this when i ran taints i was expected to get node-role.kubernetes.io/cp:NoSchedule but i got result as
Taints: node-role.kubernetes.io/master:NoSchedule
just wanted to know if this can cause problem further down with cp naming or something.
Comments
-
Hi @santoshsub123,
The output of the
kubectl describe nodes | grep -i taint
command should tell you what taint to remove in the following step. The output may be similar to thisnode-role.kubernetes.io/master:NoSchedule
, in which case the removal command would need to bekubectl taint nodes --all node-role.kubernetes.io/master-
Regards,
-Chris0 -
Hi @chrispokorni thanks for response. i understand how to remove the taint. i shared the implication of "cp" warnings i got during installation and what taint should be referred as as per lab guide. my main thing is will this cause a problem later during labs. when i do kubectl get nodes i get name of master node as "cp".
0 -
0
-
There's a workaround by changing the hostname within the VM. But I got around this by just making a new VM named 'cp' instead of 'master'.
0
Categories
- 8.8K All Categories
- 12 LFX Mentorship
- 65 LFX Mentorship: Linux Kernel
- 356 Linux Foundation Boot Camps
- 226 Cloud Engineer Boot Camp
- 69 Advanced Cloud Engineer Boot Camp
- 23 DevOps Engineer Boot Camp
- 5 Cloud Native Developer Boot Camp
- 724 Training Courses
- 14 LFC110 Class Forum
- 16 LFD102 Class Forum
- 96 LFD103 Class Forum
- 2 LFD121 Class Forum
- 55 LFD201 Class Forum
- 1 LFD213 Class Forum - Discontinued
- 128 LFD232 Class Forum
- 14 LFD254 Class Forum
- 420 LFD259 Class Forum
- 78 LFD272 Class Forum
- 1 LFD272-JP クラス フォーラム
- 15 LFS200 Class Forum
- 683 LFS201 Class Forum
- LFS201-JP クラス フォーラム
- 271 LFS211 Class Forum
- 50 LFS216 Class Forum
- 23 LFS241 Class Forum
- 26 LFS242 Class Forum
- 18 LFS243 Class Forum
- 4 LFS244 Class Forum
- 7 LFS250 Class Forum
- LFS250-JP クラス フォーラム
- 103 LFS253 Class Forum
- 753 LFS258 Class Forum
- 7 LFS258-JP クラス フォーラム
- 48 LFS260 Class Forum
- 74 LFS261 Class Forum
- 6 LFS262 Class Forum
- 76 LFS263 Class Forum
- 14 LFS264 Class Forum
- 10 LFS266 Class Forum
- 8 LFS267 Class Forum
- 8 LFS268 Class Forum
- 4 LFS269 Class Forum
- 173 LFS272 Class Forum
- 1 LFS272-JP クラス フォーラム
- 184 LFW211 Class Forum
- 99 LFW212 Class Forum
- 875 Hardware
- 204 Drivers
- 74 I/O Devices
- 43 Monitors
- 115 Multimedia
- 204 Networking
- 98 Printers & Scanners
- 82 Storage
- 716 Linux Distributions
- 78 Debian
- 64 Fedora
- 12 Linux Mint
- 13 Mageia
- 22 openSUSE
- 125 Red Hat Enterprise
- 33 Slackware
- 13 SUSE Enterprise
- 344 Ubuntu
- 445 Linux System Administration
- 33 Cloud Computing
- 63 Command Line/Scripting
- Github systems admin projects
- 88 Linux Security
- 73 Network Management
- 105 System Management
- 45 Web Management
- 50 Mobile Computing
- 18 Android
- 19 Development
- 1.2K New to Linux
- 1.1K Getting Started with Linux
- 499 Off Topic
- 119 Introductions
- 193 Small Talk
- 19 Study Material
- 742 Programming and Development
- 237 Kernel Development
- 471 Software Development
- 898 Software
- 244 Applications
- 178 Command Line
- 2 Compiling/Installing
- 72 Games
- 313 Installation
- 19 All In Program
- 19 All In Forum
Upcoming Training
-
August 20, 2018
Kubernetes Administration (LFS458)
-
August 20, 2018
Linux System Administration (LFS301)
-
August 27, 2018
Open Source Virtualization (LFS462)
-
August 27, 2018
Linux Kernel Debugging and Security (LFD440)