第1章 Gathering installation logs
To assist in troubleshooting a failed OpenShift Container Platform installation, you can gather logs from the bootstrap and control plane, or master, machines.
Prerequisites
- You attempted to install an OpenShift Container Platform cluster, and installation failed.
-
You provided an SSH key to the installation program, and that key is in your running
ssh-agentprocess.
1.1. Gathering logs from a failed installation
If you gave an SSH key to your installation program, you can gather data about your failed installation.
You use a different command to gather logs about an unsuccessful installation than to gather logs from a running cluster. If you must gather logs from a running cluster, use the oc adm must-gather command.
Prerequisites
- Your OpenShift Container Platform installation failed before the bootstrap process finished. The bootstrap node must be running and accessible through SSH.
-
The
ssh-agentprocess is active on your computer, and you provided both thessh-agentprocess and the installation program the same SSH key. - If you tried to install a cluster on infrastructure that you provisioned, you must have the fully-qualified domain names of the control plane, or master, machines.
Procedure
Generate the commands that are required to obtain the installation logs from the bootstrap and control plane machines:
If you used installer-provisioned infrastructure, run the following command:
$ ./openshift-install gather bootstrap --dir=<directory> 1- 1
installation_directoryis the directory you stored the OpenShift Container Platform definition files that the installation program creates.
For installer-provisioned infrastructure, the installation program stores information about the cluster, so you do not specify the host names or IP addresses
If you used infrastructure that you provisioned yourself, run the following command:
$ ./openshift-install gather bootstrap --dir=<directory> \ 1 --bootstrap <bootstrap_address> \ 2 --master <master_1_address> \ 3 --master <master_2_address> \ 4 --master <master_3_address>" 5
- 1
installation_directoryis the directory you stored the OpenShift Container Platform definition files that the installation program creates.- 2
<bootstrap_address>is the fully-qualified domain name or IP address of the cluster’s bootstrap machine.- 3 4 5
- For each control plane, or master, machine in your cluster, replace
<master_*_address>with its fully-qualified domain name or IP address.
注記A default cluster contains three control plane machines. List all of your control plane machines as shown, no matter how many your cluster uses.
The command output resembles the following example:
INFO Pulling debug logs from the bootstrap machine INFO Bootstrap gather logs captured here "<directory>/log-bundle-<timestamp>.tar.gz"
If you open a Red Hat support case about your installation failure, include the compressed logs in the case.
