LFS258 - Lab 9.2. Configure a NodePort
Hello folks, I'm trying to complete this lab 9-2, but I realize that the pod doesn't have access to Internet (in the the control plane and workers, I already have access), also I see that I can not egress packages from inside the pods to the Internet, for example a simple nslookup google.com
doesn't resolves.
Any idea about what is happening or am I missing something?
I'm working with VSI instances in IBMCloud with free in/out traffic.
Kind regards
Comments
-
Hi @cafaray,
I would recommend checking the
/etc/resolv.conf
file of the IBM Cloud VS instance. If needed you could add (append) an extra nameserver asnameserver 8.8.8.8
in theresolv.conf
file to fix the resolve issues.Regards,
-Chris0 -
Thank you @chrispokorni , I did it, but still not working.
I guess the problem is with calico driver, I'm getting this error describing pod
calico-node-*****
Readiness probe failed: calico/node is not ready: felix is not ready: Get "http://localhost:9099/readiness": dial tcp 127.0.0.1:9099: connect: connection refused Warning Unhealthy 13m (x2 over 13m) kubelet Readiness probe failed: calico/node is not ready: BIRD is not ready: Error querying BIRD: unable to connect to BIRDv4 socket: dial unix /var/run/calico/bird.ctl: connect: connection refused Warning Unhealthy 13m kubelet Readiness probe failed: 2022-05-01 09:03:47.003 [INFO][245] confd/health.go 180: Number of node(s) with BGP peering established = 0 calico/node is not ready: BIRD is not ready: BGP not established with 10.243.64.21
I've installed a couple of times in clean virtual machines, and I'm getting the same result. Maybe the labs 3.1, 3.2, and 3.3 are missing something, or obvious some steps that I'm not doing. My first sight was when the Lab 3.2 mentioned that calico-node must run two pods, but mine it's running just one.
Appreciate any help on this.
Kind regards0 -
Hi @cafaray,
The connection refused error seems to indicate that a firewall may be blocking traffic to a port required by a calico component. I would recommend to configure the VPC firewall to allow all ingress traffic, from all sources, all protocols, to all ports.
The Overview section of Lab Exercise 3.1 highlights networking considerations when provisioning the infrastructure. I would recommend revisiting this section for clarification.
Regards,
-Chris0 -
I'm using this configuration for my VPC, also as I've mentioned at first time, from the VSI I have free IN/OUT traffic with no restrictitons (I'm attaching some screenshots of my VPC configuration).
(Sorry for the language in the Screenshots, I forgot change my local configuration.
)
Here the VPC and networks: my VSIs are using second one.
Here the rules in the network
The problem is in the pod/container level, for any reason it's no communicating with the erternal world.
I'm doing many hours to solve this issue, I'm sure the problem is something stupid, but I'm not capable to find what I'm doing wrong.
Kind regards.
0 -
Hi @cafaray,
As long as your VPC uses the firewall rule that allows all inbound traffic from all IP sources, all protocols (no restrictions of any kind to TCP or other protocols), to all port numbers (no restrictions to only allow ports 22, 80, 443, etc...), your containers should have access to the outside world.
Were any connectivity issues observed in earlier labs? External access to services is introduced as early as Lab 3.5...
Regards,
-Chris0 -
Hi,
Right, I can not complete Lab 3.5, but I have not attached importance to the situation, I considered that it was not necessary for the subsequent ones.
Regards.
0
Categories
- All Categories
- 49 LFX Mentorship
- 102 LFX Mentorship: Linux Kernel
- 552 Linux Foundation Boot Camps
- 296 Cloud Engineer Boot Camp
- 118 Advanced Cloud Engineer Boot Camp
- 52 DevOps Engineer Boot Camp
- 53 Cloud Native Developer Boot Camp
- 4 Express Training Courses
- 4 Express Courses - Discussion Forum
- 1.9K Training Courses
- 18 LFC110 Class Forum
- 6 LFC131 Class Forum
- 25 LFD102 Class Forum
- 150 LFD103 Class Forum
- 17 LFD121 Class Forum
- LFD137 Class Forum
- 61 LFD201 Class Forum
- LFD210 Class Forum
- LFD210-CN Class Forum
- 1 LFD213 Class Forum - Discontinued
- 128 LFD232 Class Forum
- LFD237 Class Forum
- 23 LFD254 Class Forum
- 597 LFD259 Class Forum
- 102 LFD272 Class Forum
- 1 LFD272-JP クラス フォーラム
- LFD273 Class Forum
- 2 LFS145 Class Forum
- 24 LFS200 Class Forum
- 739 LFS201 Class Forum
- 1 LFS201-JP クラス フォーラム
- 3 LFS203 Class Forum
- 69 LFS207 Class Forum
- 300 LFS211 Class Forum
- 54 LFS216 Class Forum
- 47 LFS241 Class Forum
- 41 LFS242 Class Forum
- 37 LFS243 Class Forum
- 11 LFS244 Class Forum
- 33 LFS250 Class Forum
- 1 LFS250-JP クラス フォーラム
- LFS251 Class Forum
- 140 LFS253 Class Forum
- 1K LFS258 Class Forum
- 10 LFS258-JP クラス フォーラム
- 92 LFS260 Class Forum
- 129 LFS261 Class Forum
- 32 LFS262 Class Forum
- 79 LFS263 Class Forum
- 15 LFS264 Class Forum
- 11 LFS266 Class Forum
- 17 LFS267 Class Forum
- 17 LFS268 Class Forum
- 23 LFS269 Class Forum
- 203 LFS272 Class Forum
- 1 LFS272-JP クラス フォーラム
- LFS281 Class Forum
- 221 LFW211 Class Forum
- 167 LFW212 Class Forum
- SKF100 Class Forum
- 901 Hardware
- 219 Drivers
- 74 I/O Devices
- 44 Monitors
- 115 Multimedia
- 208 Networking
- 101 Printers & Scanners
- 85 Storage
- 761 Linux Distributions
- 88 Debian
- 66 Fedora
- 15 Linux Mint
- 13 Mageia
- 24 openSUSE
- 141 Red Hat Enterprise
- 33 Slackware
- 13 SUSE Enterprise
- 356 Ubuntu
- 477 Linux System Administration
- 41 Cloud Computing
- 69 Command Line/Scripting
- Github systems admin projects
- 95 Linux Security
- 77 Network Management
- 108 System Management
- 49 Web Management
- 66 Mobile Computing
- 23 Android
- 29 Development
- 1.2K New to Linux
- 1.1K Getting Started with Linux
- 536 Off Topic
- 131 Introductions
- 216 Small Talk
- 21 Study Material
- 816 Programming and Development
- 275 Kernel Development
- 507 Software Development
- 928 Software
- 260 Applications
- 184 Command Line
- 3 Compiling/Installing
- 76 Games
- 316 Installation
- 59 All In Program
- 59 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)