A Technical I.T./DevOps Blog
Problem scenario
A GitLab webhook (aka integration) fails. It used to work as an integration mechanism with Jenkins. The GitLab error message says:
“500 <!DOCTYPE html> … at org.jenkinsci.main.modules.instance_identity.InstanceIdentity.get(InstanceIdentity.java:133)”
Solution
Go to the Jenkins server and reinstall the GitLab plugins.
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Problem scenario
You have two Linux servers (server A and server B). You have a Git repository on server A. You are logged into server B as jdoe. You cloned a Git repository from server A (with a “git clone git@gitlabFQDN:/path/to/nameOfRepo.git” command). You added some files and used “git commit” on server B. From server B you run this command as the Linux user jdoe: git push origin master
You get this problem:
remote: GitLab: You are not allowed to upload code for this project.
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Problem scenario
You have a Git repository that is protected in a GitLab project. You want to allow developers to upload code directly to the master branch (not alternative branches). What do you do?
Solution
It may be more advisable to work with a branch of a git repository. This is a basic solution for testing or those instances when you want to work directly with the master branch.
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Continue reading “How Do You Unprotect a Git Repository That Is in a GitLab Project?”
Problem scenario
You want to create a rudimentary CI/CD pipeline (one that is simple and has no QA or automated testing of code). You want to trigger a deployment of code upon code being checked into a Git repository. You want to set up GitLab and Jenkins to be the main servers of this pipeline. You have two other servers; one is for developing code on and checking code into a Git repository and the other server is for receiving code once it is checked into GitLab.
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Continue reading “How Do You Set up a Basic CI/CD Pipeline with GitLab and Jenkins?”
Problem scenario
You want to add files to a new project in GitLab. You want to do this from the command prompt (not through the web UI). How do you do this?
Solution
This assumes you have a new project created; if you do not know how, see this posting. If you want to import a project, see this posting.
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Continue reading “How Do You Add Files to a New Project in GitLab?”
Problem scenario
You have GitLab and Jenkins set up already. You want to use a GitLab API token in Jenkins. How do you create a GitLab API token?
Solution
1. Log into the GitLab web UI. (If you need directions on setting up GitLab, see this posting.)
2. In the upper righthand corner, go to the circle icon next to an icon of a down arrow.
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Problem scenario
You have a Linux server with the command prompt but no GUI. A separate server hosts GitLab. How do you configure the first character-based server to use GitLab?
Solution
This assumes that you have deployed GitLab; if you need directions for this, see this posting. This assumes that you have created a project in GitLab. If you need directions for this,
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Problem scenario
You want to test out GitLab. How do you create your first project?
Solution
Prerequisite
This assumes you have GitLab installed; if you do not know how, see this posting.
Procedures
1. Log into GitLab via the web UI. (If you do not have credentials and you set it up, the web UI for GitLab should have prompted you to enter a new password twice.
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Continue reading “How Do You Create a New Project in GitLab?”
Problem scenario
You want to do deploy (install and configure) GitLab on a Debian Linux server. What do you do?
Solution
1. Get a Debian or Ubuntu Linux server with either 3.5 GB of RAM or at least 1.5 GB of RAM and 2 GB of virtual memory. If you need to resize an AWS instance, see this posting. If you need to resize a GCP instance,
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Continue reading “How Do You Install GitLab on Debian or Ubuntu Linux?”
Problem scenario
You are trying to configure GitLab to work with Jenkins (so the two are integrated to enable CI, continual integration, in your environment). When you test a connection of an integration webhook from GitLab to reach out to Jenkins you receive this error:
“Hook executed successfully but returned HTTP 403… You are authenticated as anonymous Groups that you are in: Permission you need to have (but didn’t) hudson.model.Hudson.Read…which is implied by hudson.security.Permission.GenericRead…”
How do you solve this problem?
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