Lab 3.2 - cannot join worker node to cluster
Hello,
I have followed the instructions of Lab 3,1 and 3,2
I use 2 vm (ubuntu) to create the nodes, exactly like in the video. Each VM is sized 20MB, 2 nodes and 16GB of ram.
When trying to add the worker node (second vm) to the cp node (first vm), I obtain the following error:
I suspect this may be because when asking for the hostname on the cp node, I get 127.0.1.1.
Has anyone experienced a similar issue?
Thanks in advance for your help.
Josep Maria
Answers
-
Note: both VM have enabled nested virtualisation
0 -
Hi @josepmaria,
The one thing I see so far is a typo, your join command is incorrect: it includes the backslash "\" (the multi-line separator) in what appears to be a single line command.
The hostname returning an unexpected IP address may be attributed to the type of network attached to the VM's network interface. For local VMs I recommend a single bridged network interface per VM. That will ensure the hypervisor uses DHCP to assign private IP addresses to your VMs.
As you configure each VM, ensure that their respective hosts files are properly populated with the private IP of the control plane node and the k8scp alias, as guided by steps in the lab guide.
Also, the "20MB" in your message, that seems to be inadequate. I recommend at least 20GB of virtual disk space per VM. Also 2 nodes (assuming CPU cores) should be enough, while 16GB RAM per VM may be slightly more than needed for the lab environment.
Regards,
-Chris0 -
Hello @chrispokorni ,
Thanks for your answer.
As for single bridge network attached to my VM (vmware), I have the following options :
I have tried the options (wi-fi and autodetect) under Bridge Networking, and then restarted the VM. Unfortunately, when running the commnand
$ hostname -i
, it keep returning the same IP 127.0.1.1Kindly let me knwo if there anything else I could go to obtain an expected IP when running
$ hostname -i
Thanks for your time.
Sincerely,
Josep Maria
0 -
Hi @josepmaria,
Perhaps viewing the output of the
hostname --help
command may reveal other options to list the IP addresses of your VM.Another popular command is
ip a
but its output is much more complex.Your hypervisor should have a DHCP option or a static IP assignment option to generate and assign private IP addresses to your VMs.
Regards,
-Chris0 -
Hi @chrispokorni ,
Thank you for your answer. I appreciate it.
I shall do my best to find out a way to associate a private IP to the VM and let you know.
Sincerely,
Josep Maria
0
Categories
- All Categories
- 230 LFX Mentorship
- 230 LFX Mentorship: Linux Kernel
- 812 Linux Foundation IT Professional Programs
- 365 Cloud Engineer IT Professional Program
- 183 Advanced Cloud Engineer IT Professional Program
- 82 DevOps Engineer IT Professional Program
- 151 Cloud Native Developer IT Professional Program
- 138 Express Training Courses & Microlearning
- 138 Express Courses - Discussion Forum
- Microlearning - Discussion Forum
- 6.4K Training Courses
- 48 LFC110 Class Forum - Discontinued
- 71 LFC131 Class Forum
- 44 LFD102 Class Forum
- 228 LFD103 Class Forum
- 19 LFD110 Class Forum
- 42 LFD121 Class Forum
- 18 LFD133 Class Forum
- 8 LFD134 Class Forum
- 18 LFD137 Class Forum
- 71 LFD201 Class Forum
- 5 LFD210 Class Forum
- 5 LFD210-CN Class Forum
- 2 LFD213 Class Forum - Discontinued
- 128 LFD232 Class Forum - Discontinued
- 2 LFD233 Class Forum
- 4 LFD237 Class Forum
- 24 LFD254 Class Forum
- 702 LFD259 Class Forum
- 111 LFD272 Class Forum - Discontinued
- 4 LFD272-JP クラス フォーラム
- 13 LFD273 Class Forum
- 186 LFS101 Class Forum
- 1 LFS111 Class Forum
- 3 LFS112 Class Forum
- 3 LFS116 Class Forum
- 7 LFS118 Class Forum
- LFS120 Class Forum
- 9 LFS142 Class Forum
- 8 LFS144 Class Forum
- 4 LFS145 Class Forum
- 3 LFS146 Class Forum
- 2 LFS148 Class Forum
- 15 LFS151 Class Forum
- 4 LFS157 Class Forum
- 45 LFS158 Class Forum
- LFS158-JP クラス フォーラム
- 10 LFS162 Class Forum
- 2 LFS166 Class Forum
- 4 LFS167 Class Forum
- 3 LFS170 Class Forum
- 2 LFS171 Class Forum
- 3 LFS178 Class Forum
- 3 LFS180 Class Forum
- 2 LFS182 Class Forum
- 5 LFS183 Class Forum
- 32 LFS200 Class Forum
- 737 LFS201 Class Forum - Discontinued
- 3 LFS201-JP クラス フォーラム - Discontinued
- 19 LFS203 Class Forum
- 135 LFS207 Class Forum
- 2 LFS207-DE-Klassenforum
- 1 LFS207-JP クラス フォーラム
- 302 LFS211 Class Forum
- 56 LFS216 Class Forum
- 52 LFS241 Class Forum
- 48 LFS242 Class Forum
- 38 LFS243 Class Forum
- 15 LFS244 Class Forum
- 5 LFS245 Class Forum
- LFS246 Class Forum
- LFS248 Class Forum
- 52 LFS250 Class Forum
- 2 LFS250-JP クラス フォーラム
- 1 LFS251 Class Forum
- 156 LFS253 Class Forum
- 1 LFS254 Class Forum
- 1 LFS255 Class Forum
- 9 LFS256 Class Forum
- 1 LFS257 Class Forum
- 1.3K LFS258 Class Forum
- 10 LFS258-JP クラス フォーラム
- 129 LFS260 Class Forum
- 160 LFS261 Class Forum
- 43 LFS262 Class Forum
- 82 LFS263 Class Forum - Discontinued
- 15 LFS264 Class Forum - Discontinued
- 11 LFS266 Class Forum - Discontinued
- 24 LFS267 Class Forum
- 25 LFS268 Class Forum
- 32 LFS269 Class Forum
- 6 LFS270 Class Forum
- 202 LFS272 Class Forum - Discontinued
- 2 LFS272-JP クラス フォーラム
- 4 LFS147 Class Forum
- 1 LFS274 Class Forum
- 4 LFS281 Class Forum
- 12 LFW111 Class Forum
- 262 LFW211 Class Forum
- 184 LFW212 Class Forum
- 15 SKF100 Class Forum
- 1 SKF200 Class Forum
- 1 SKF201 Class Forum
- 797 Hardware
- 199 Drivers
- 68 I/O Devices
- 37 Monitors
- 104 Multimedia
- 174 Networking
- 91 Printers & Scanners
- 85 Storage
- 759 Linux Distributions
- 82 Debian
- 67 Fedora
- 17 Linux Mint
- 13 Mageia
- 23 openSUSE
- 148 Red Hat Enterprise
- 31 Slackware
- 13 SUSE Enterprise
- 354 Ubuntu
- 470 Linux System Administration
- 39 Cloud Computing
- 71 Command Line/Scripting
- Github systems admin projects
- 95 Linux Security
- 78 Network Management
- 102 System Management
- 47 Web Management
- 69 Mobile Computing
- 18 Android
- 38 Development
- 1.2K New to Linux
- 1K Getting Started with Linux
- 374 Off Topic
- 115 Introductions
- 174 Small Talk
- 24 Study Material
- 807 Programming and Development
- 304 Kernel Development
- 485 Software Development
- 1.8K Software
- 263 Applications
- 183 Command Line
- 3 Compiling/Installing
- 987 Games
- 317 Installation
- 102 All In Program
- 102 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)