A Technical I.T./DevOps Blog
Historically the term “continuous integration” has been the norm in the world of technology. In this article, Amazon defines it. As of two days ago, Amazon posted an article using the term “continual integration.” This website helps promote the grammatically correct “continual integration.”
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Continue reading “Continuous Integration vs. Continual Integration”
Problem scenario
You want to install SaltStack on RHEL instances for the first time on an AWS server.
Solution in Three Parts
(If you want instructions on how to do this with Debian/Ubuntu and/or Linux SUSE, see this posting.)
Part 1 Create a Salt Master Server
1. Create a RHEL instance and put it in a Security Group that has access to the Internet for this initial setup,
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Continue reading “How To Install and Configure Salt Stack on RedHat Linux (AWS Instances)”
Problem Scenario You try to use an AWS CLI command, but you get an error. The error says “[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:…)”
Possible solutions
#1 Redo the AWS configuration. Issue this command: aws configure
Leave the AWS Access Key ID and the AWS Secret Access Key the way they are. Look at the “Default region name.” Verify there is no letter at the end.
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Continue reading “How To Resolve “Certificate_Verify_Failed” error when trying an AWS CLI command?”
AWS used to have a separate API package from their CLI package; now the two are the same. OpenStack components’ command line interface activity is captured in a log when proper thresholds are set (e.g., nova.conf, glance.conf etc.) and later met. CLI activity (which bypasses Horizon) as well as GUI API activity (e.g., mouse clicks on buttons in Horizon) is written to a file named api.log. The location of this api.log file follows this convention: /var/log/OpenStackComponentName/api.log (where “OpenStackComponentName” is nova,
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Continue reading “The Apparent Story Behind OpenStack Component Log File Names”
Update on 11/20/20: We recommend you see How Do You Install the docker.service File on RHEL 8.x? instead of the directions below. (Many times this command will work: sudo yum -y install docker )
Update on 9/10/19: These directions below work to install Docker version 17.05.0-ce on RHEL 8.x.
These “directions” to install Docker on RedHat Enterprise Linux include a script and how to run it.
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Continue reading “How To Install Docker on an AWS Instance of RedHat Linux”
Updated 12/26/18
Problem scenario
You want to install Docker. You can make changes to the Ubuntu Linux repositories so you can use apt-get to install it. How do you install Docker on an AWS EC-2 instance?
Solution
There is an alternative set of directions if you click on this link here (if you would prefer not to configure the apt-get repositories). These directions below to install Docker on Ubuntu Linux include a script and how to run it (but the script below will make a change to the repositories that the Linux server uses).
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Continue reading “How To Install Docker on an AWS Instance of Ubuntu”
Problem scenario: You are trying to upload a file to S3 but get an error. You use a command like this:
curl -T /path/to/sourcefile.java http://s3.amazonaws.com/my.bucket/sourcefile.java
You get an error in XML that includes “The specified key does not exist.”
Solution: Check the path to your source file. Verify your source file is there with the name you expect it to be.
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Continue reading “AWS S3 Problem: “The specified key does not exist.” How do you solve this?”
The Economist, specifically the August 27th – September 2nd 2016 issue, on page 47 and 48, in the article “Linux and AWS,” reports four fascinating facts:
1) The world’s I.T. budget is approximately $3,400,000,000,000 (almost 3.5 trillion) dollars.
2) As of mid-2016, Google’s market share for cloud services increased 162% from the previous year!
3) Roughly 65% of the over one million AWS customers are startups.
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Continue reading “Cloud Computing Is Changing the Global Economy”
These “directions” to install Suricata on SUSE Linux include a script and how to run it. The script was designed to install Suricata 3.1dev on an AWS instance of SUSE 12 SP1. This script was based on these here. This script requires that your AWS SUSE Linux server is in a security group that has access to the Internet. The script takes approximately five minutes to run. But bandwidth and resources on your instance may vary.
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Continue reading “How to Install Suricata on an AWS Instance of SUSE Linux”
Updated on 11/28/17
Problem scenario
You want to install Suricata on Ubuntu Linux. How do you do this?
Solution
These directions to install Suricata include a script and how to run it. The optional script in 2.c was based on these here. The optional script in 2.c script requires that your AWS Ubuntu Linux server is in a security group that has access to the Internet.
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Continue reading “How to Install Suricata on an AWS Instance of Ubuntu Linux”