Exercise 5.3: Cannot get example for fluentd working as described

Hi,
I followed the labs and the example to get fluentd forwarding the nginx logs would not work. The issue appeared to be with forwarding to the container's localhost.
There were a few of issues:
1. Fluentd does not appear to read the environment variable FLUENTD_ARGS so I had to overwrite the default path /fluentd/etc
2. The fluent.conf file match would not forward to localhost so I had to change it to stdout.
3. There is a mistake in the lab. The correct path for weblog-pv-storage should be /var/log/nginx, not /var/log.
Below is what I ended up with to get it going. Can you please help me understand why #1 and #2 didn't work as expected?
apiVersion: v1 kind: List items: - apiVersion: v1 kind: PersistentVolume metadata: name: weblog-pv labels: type: local spec: storageClassName: manual accessModes: - ReadWriteOnce hostPath: path: /tmp/weblog type: DirectoryOrCreate capacity: storage: 500Mi - apiVersion: v1 kind: PersistentVolumeClaim metadata: name: weblog-pvc spec: storageClassName: manual accessModes: - ReadWriteOnce resources: requests: storage: 200Mi - apiVersion: v1 kind: ConfigMap metadata: name: fluentd-config data: fluent.conf: | <source> @type tail format none path /var/log/nginx/access.log tag count.format1 </source> <match *.**> @type stdout </match> - apiVersion: v1 kind: Pod metadata: name: sidecar-example labels: app: webserver spec: containers: - name: nginx image: nginx:latest ports: - containerPort: 80 volumeMounts: - name: logging-vol mountPath: /var/log/nginx - name: fdlogger env: - name: FLUENTD_ARGS value: -c /etc/fluentd-config/fluent.conf image: fluent/fluentd volumeMounts: - name: logging-vol mountPath: /var/log/nginx - name: log-config # mountPath: /etc/fluentd-config mountPath: /fluentd/etc volumes: - name: logging-vol persistentVolumeClaim: claimName: weblog-pvc - name: log-config configMap: name: fluentd-config - apiVersion: v1 kind: Service metadata: name: sidecar-svc spec: selector: app: webserver type: NodePort ports: - name: sidecar-port port: 80 nodePort: 32000
Comments
-
Hello,
For #1 I think it's better to not use env but instead pass arguments to the container
- name: fdlogger image: fluent/fluentd:v1.6-1 args: ['-c', '/etc/fluentd-config/fluentd.conf']
For #2 I still didn't understand why they send the input data to the localhost
4th point : There is also a bad link that lead no where for fluentd documenation, it has to be https://docs.fluentd.org/v/1.0/configuration/config-file (if v1) is the target
0 -
@NargiT
arguments to the fdlogger container needs to be specified as:
args: ['fluentd', '-c', '/etc/fluentd-config/fluentd.conf']1 -
If you want to stick on environment variable configuration, use FLUENTD_OPT, instead of FLUENTD_ARGS; and it will works.
0 -
I agree with @bryonbaker
The solution does not work and also the output shown in the solution is wrong:parsing config file is succeeded path="/fluentd/etc/fluent.conf"
means that the config we want to set is not loaded.
According to the configmap volume, fluentd should load the config placed in:/etc/fluentd-config/fluentd.conf
The solution proposed by @rameshsingal works.
Thanks!0 -
Hello,
Indeed Fluent continues to evolve, and the previous configuration does not work the same way anymore. Documentation does not indicate why, or really much on the better way to do the same. One option was mentioned by Bertrand, earlier in the string, by using the FLUENTD_OPT instead.
We will update or remove this section for the next course release.
Regards,
0 -
In version
fluent/fluentd:v1.11
you need to useFLUENTD_CONF
and give it the name of the file. You can't change the path anymore via the env variable, it is just the name of the file which has to be in/fluentd/etc
- name: fluentd-logger image: fluent/fluentd:v1.11 env: - name: FLUENTD_CONF value: fluentd.conf ...
If you want to put it in a different path than
/fluentd/etc
then you need to use the option @rameshsingal suggested.2 -
Hello,
Thank you for this update. It seems they like to change essential options with each release. I'll looking into the setting and update the content soon.
Thanks!
Regards,
0
Categories
- All Categories
- 51 LFX Mentorship
- 104 LFX Mentorship: Linux Kernel
- 576 Linux Foundation IT Professional Programs
- 304 Cloud Engineer IT Professional Program
- 125 Advanced Cloud Engineer IT Professional Program
- 53 DevOps Engineer IT Professional Program
- 61 Cloud Native Developer IT Professional Program
- 6 Express Training Courses
- 6 Express Courses - Discussion Forum
- 2.1K Training Courses
- 19 LFC110 Class Forum
- 7 LFC131 Class Forum
- 27 LFD102 Class Forum
- 158 LFD103 Class Forum
- 21 LFD121 Class Forum
- 1 LFD137 Class Forum
- 61 LFD201 Class Forum
- 1 LFD210 Class Forum
- LFD210-CN Class Forum
- 1 LFD213 Class Forum - Discontinued
- 128 LFD232 Class Forum
- LFD237 Class Forum
- 23 LFD254 Class Forum
- 613 LFD259 Class Forum
- 105 LFD272 Class Forum
- 1 LFD272-JP クラス フォーラム
- 1 LFD273 Class Forum
- 2 LFS145 Class Forum
- 25 LFS200 Class Forum
- 739 LFS201 Class Forum
- 1 LFS201-JP クラス フォーラム
- 11 LFS203 Class Forum
- 77 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
- 37 LFS250 Class Forum
- 1 LFS250-JP クラス フォーラム
- LFS251 Class Forum
- 141 LFS253 Class Forum
- LFS254 Class Forum
- 1.1K LFS258 Class Forum
- 10 LFS258-JP クラス フォーラム
- 93 LFS260 Class Forum
- 132 LFS261 Class Forum
- 33 LFS262 Class Forum
- 80 LFS263 Class Forum
- 15 LFS264 Class Forum
- 11 LFS266 Class Forum
- 18 LFS267 Class Forum
- 18 LFS268 Class Forum
- 23 LFS269 Class Forum
- 203 LFS272 Class Forum
- 1 LFS272-JP クラス フォーラム
- LFS274 Class Forum
- LFS281 Class Forum
- 236 LFW211 Class Forum
- 172 LFW212 Class Forum
- 7 SKF100 Class Forum
- SKF200 Class Forum
- 903 Hardware
- 219 Drivers
- 74 I/O Devices
- 44 Monitors
- 116 Multimedia
- 209 Networking
- 101 Printers & Scanners
- 85 Storage
- 763 Linux Distributions
- 88 Debian
- 66 Fedora
- 15 Linux Mint
- 13 Mageia
- 24 openSUSE
- 142 Red Hat Enterprise
- 33 Slackware
- 13 SUSE Enterprise
- 357 Ubuntu
- 479 Linux System Administration
- 41 Cloud Computing
- 70 Command Line/Scripting
- Github systems admin projects
- 95 Linux Security
- 78 Network Management
- 108 System Management
- 49 Web Management
- 68 Mobile Computing
- 23 Android
- 30 Development
- 1.2K New to Linux
- 1.1K Getting Started with Linux
- 538 Off Topic
- 131 Introductions
- 217 Small Talk
- 22 Study Material
- 826 Programming and Development
- 278 Kernel Development
- 514 Software Development
- 928 Software
- 260 Applications
- 184 Command Line
- 3 Compiling/Installing
- 76 Games
- 316 Installation
- 61 All In Program
- 61 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)