A Technical I.T./DevOps Blog
Problem scenario
You want to install Octuopus Deploy (e.g., with the 45 free trial) to an AWS instance of Windows Server 2016. How do you do this?
Solution
This is a simple deployment of Octopus Deploy server for testing or evaluation purposes. Literally any AWS flavor will work as only 512 MB of RAM is needed for Octopus Deploy server to work for minimal evaluation.
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Continue reading “How Do You Install Octopus Deploy server to a Windows 2016 Server?”
Problem scenario
You want to deploy TeamCity to an AWS instance running Windows Server 2016. How do you do this?
Solution
This is a simple deployment of TeamCity server for testing or evaluation purposes. The flavor of server will depend on the way you use TeamCity server. For a basic deployment, one processor and 1 GB of RAM is sufficient. This is far from enough CPU and memory for any “real” usage of TeamCity.
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Continue reading “How Do You Deploy JetBrains TeamCity to an AWS Windows Server 2016?”
Problem scenario
You want your central Jenkins 1.651.1 server running on Linux to push down builds (or run jobs) on Windows servers. When you try to connect Jenkins master to a slave server, you get an error message like this:
“ERROR: Access is denied. See http://wiki.jenkins-ci.org/display/JENKINS/Windows+slaves+fail+to+start+via+DCOM for more information about how to resolve this. org.jinterop.dcom.common.JIException: Message not found for errorCode: 0x00000005 at org.jinterop.dcom.core.JIComServer.init(JIComServer.java:”
You know the credentials and IP address are correct.
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Continue reading “How Do You Get Jenkins Running on Linux to Work With Windows Servers?”
Question
What is TCP port 8080 typically used for?
Answer
Jenkins, Docker, NodeJS, Apache Ambari, Apache Marathon, Apache Tomcat, Amazon Web Services’ Elastic Load Balancer, JBoss Application Server, GitLab, M2MLogger (remote monitoring), InfoSphere BigInsights Console (IBM’s proprietary Hadoop and Spark solution), JasperReports (because of Apache Tomcat), remote management of physical routers, and enterprise network proxy services all commonly use port 8080.
In part, taken from Learning AWS,
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Continue reading “What is TCP port 8080 typically used for?”
Problem scenario: When using Jenkins, PsExec never seems to work when called as a batch command in a .bat file or PowerShell script. Jenkins logs an error about the PsExec command not being found.
Solution / workaround: PsExec seems to never work if called by a PowerShell script or a batch script via Jenkins. The only exception seems to be if a Scheduled Task calls a .bat file or PowerShell script that uses PsExec.
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Problem scenario: Using a configuration management tool, you can modify the selections of servers for your configurations to exclude specific servers. With Puppet Master you can create classes of nodes (that exclude various Puppet Agent servers) and have manifests apply to the class. In Puppet you can also write manifests that specify individual servers. Chef recipes can target certain Chef clients and exclude others. SaltStack allows the Salt Master server to “call a highstate” (or run an action) on specific Salt Minion servers to push down files or execute commands while ignoring multiple Salt Minions.
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Continue reading “How Do Build and Release Engineers Target Specific Servers With Jenkins Builds?”
Problem scenario: You are in the Jenkins master web UI and are trying to configure a Jenkins node (previously known as a slave) instance. You entered the correct hostname, username and password. You get this error:
“ERROR: Unexpected error in launching a slave. This is probably a bug in Jenkins.
java.lang.IllegalStateException: Connection is not established!”
Solution: Instead of using the hostname of the Jenkins node (previously known as a slave) server,
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Continue reading “Troubleshooting Jenkins (Two Different Problems)”
Problem Scenario
(If you have an internet connection, see this posting.) In trying to install the different .rpms (e.g., on CentOS/RHEL/Fedora) for Jenkins you get errors.
For example, here is one command you might try:
yum localinstall springframework-aop-3.2.15-3.fc24.noarch.rpm
This above command may result in an error like this:
“Requires: mvn(org.springframework:spring-beans) = 3.2.15.RELEASE … Requires: mvn(org.springframework:spring-core) = 3.2.15.RELEASE”
Here is another command you might try:
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Problem scenario: You want to copy a GitLab project from one instance of GitLab to a new instance of GitLab. The Git repository you want to copy to a new GitLab server is not presented via the git://, http://, nor https:// protocols.
Prerequisites: You have root access to the back end of the server with the GitLab.
Method of Solution:
1)
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Continue reading “How To Import A Copy of An Existing GitLab project”
Problem scenario: When you bring up the web UI for GitLab CE (Community Edition) for the first time, you are prompted to enter a new password twice. This password will be for the admin@example.com username. If someone else set it up and failed to provide you with the username, and the back end email has not been configured, follow these directions.
Prerequisite: You must have root access.
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Continue reading “How To Enter the Web UI of Gitlab CE without Setting Up Its Backend Email”