I have setup OpenShift 3.2 cluster using ansible. Now I want to check master logs. Is there a way I can increase the log level to get more info? If yes how to do that?
thanks for help
In order to have a centralized place for Openshift services and projects logs, you can always deploy the EFK stack (which provides a Kibana UI to view any logs)
https://docs.openshift.com/enterprise/3.2/install_config/aggregate_logging.html
Related
I am looking for a way to install AppDynamics in a OpenShift Cluster.
Unable to find proper documentation on how to install and what tools need to be installed.
Should My Application Docker file also include any images related to AppDynamics
If anyone familiar with this please share some steps or provide reference to documents.
Old docs: https://docs.appdynamics.com/22.2/en/infrastructure-visibility/monitor-containers-with-docker-visibility/use-docker-visibility-with-red-hat-openshift
New Docs: https://docs.appdynamics.com/22.2/en/infrastructure-visibility/monitor-kubernetes-with-the-cluster-agent
Note that there is not a prescribed way to instrument as such, you need to make some decisions.
i.e. (from the second doc link):
The first decision is to use the officially released pre-built
Appdynamics Operator images published on DockerHub and Redhat
Registry or If you want to build a custom Appdynamics Operator image.
See Build the Custom Cluster Agent Image.
The second decision is whether to use the officially released
pre-built Cluster Agent images published on DockerHub and Redhat
Registry or If you want to build a custom Cluster Agent image. See
Cluster Agent Container Image.
The third decision is whether to install the Cluster Agent using the
Kubernetes CLI or the Cluster Agent Helm Chart. See Install the
Cluster Agent with the Kubernetes CLI and Install the Cluster Agent
with Helm Charts.
What is the difference between application console vs cluster console in openshift enterprise version. I am new to openshift and confused with terminologies. I feel that openshift is like linux kernel in our system(an analogy). On top of that are containers and to orchestrate we have kubernetes. However , the architecture of openshift is exact opposite. Please correct me.
OpenShift is just one of the available Kubernetes distributions, which adds enterprise-level services like authentication, authorization and multitenancy.
The web console provides two perspectives: Administrator and Developer. The Developer perspective provides workflows specific to developer use cases like create, deploy and monitor applications, while Administrator perspective is responsible for managing the cluster resources, users, and projects. Depending on the user's role, you will see a different set of views available in the main menu.
Im trying to find a way to monitor couchbase cluster settings such as memory, email configurations, etc.
Ideally it would be a cli/REST command that describes entire cluster configurations or its particular components.
Couchbase version: 4.5.1- Community Edition
Will appreciate for any advice.
In current CB versions, you can get the email info using http://hostname:8091/settings/alerts and memory info using http://hostname:8091/pools/nodes
For some reason, I cannot seem to access the CB archived documentation to confirm this. Try it out and see if these APIs are available in 4.5.x. The pools API should be available. Not sure on the alerts API.
I have openshift 3.9 installed in one AWS region ohio. I have jenkins installed in it. I have a pipeline code in where it will take Java code from GitHub bind with jboss and deployed it in project test within the same cluster. It works fine and I'm able to access the app as pod is creating and app is also binding with jboss. Now I want to deploy this application across different clusters either within the same region or across different regions. Is there a way to achieve this?
You can use the oc command line tool in your Jenkins pipeline to deploy it to a different cluster. For a related example, check the Gitlab review apps example using an OpenShift cluster. It does something similar, where the CI pipeline deploys the required artifacts to an OpenShift cluster using oc and appropriate credentials.
I'm working on an architecture to deploy my webapp. I would like to use Google Managed Instance Groups because I have some strict requirements. I was wondering:
which is the best Web container to be deployed in a distributed environment?
I'm familiar with Tomcat, it's Tomcat OK to be deployed in an instance group?
my Webapp running on tomcat will generate logs that will be stored in the current machine hosting tomcat. How should I handle distributed application logs.
I don't want to lose information and I would like to have a single view of all log of my webapp even if distributed, Is it that possible?
Thanks
I have used tomcat in GCP for over a year and it has worked without problems with the load balancer. To solve the issue of the logs you must use an agent to save the logs in stackdriver https://cloud.google.com/logging/docs/view/service/agent-logs