Devops Blog – Openstack, Openshift,- Docker, Kubernetes, Swarm, Linux, Windows Stacks – Mongodb, An occasional opinion
Hits: 60Here is the secret method to simply Download Ubuntu 20.04 Server Very often you want to download a new os to install VMs on a server or the like. Usually they just give a link on their website to download the file, which you then need to upload to your server. So here is …
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Hits: 468I was giving up trying to figure out how to assign an image name to images created by docker-compose. BY default the image names are a bit annoying and not good for pushing to a docker registry. Apparently all you need to do is to use the image tag. When you download an image …
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Hits: 184Centos Project Cancelled As Well As Kubernetes Project is Removing Docker Support Recent news has informed that Devops and System administrators will be working extra for the next few months. In the build up to becoming defunct Centos is becoming as unstable as leading edge beta distros Our server was becoming a bit sluggish …
Hits: 1807Amazon Linux 2 with Git-lfs Amazon Linux offers some pre-installed extras, Like on the fly volume extension. Amazon Linux is great if you don’t have a really complicated stack. Sometimes the minimalism is too much. But installing some non-standard stuff is possible. For instance our simple project needs to work with large files stored …
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Hits: 623On the Red Hat Openstack 13 compute using DPDK creating Server instances gets stuck. when running: openstack server list or show says that “building” When logging into the compute running virsh list shows the same VM is stuck in paused. The solution is to add the following to your roles_data.yaml 1. Define ‘VhostuserSocketGroup’ under …
Hits: 1129 Clients concerned with security like financial institutions need to have their containers pulled from an internal Docker registry Setup disconnected Docker registry for Rhosp Pre-requisites: On registry run: $ yum update -y 3.2 Install the Offline registry and Tag the images yum install -y docker-distribution docker yum-utils docker git wget git net-tools bind- …
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Hits: 389Troubleshoot Fencing on Redhat or Centos Linux We are setting up fencing for Enterprise Customers for Openstack. In Linux fencing is called for whenever you have a cluster. Using PCS and fencing the other servers can turn off a damaged server until it is fixed. Pay attention that mac address is the provision nic …
Hits: 6758Error establishing a database connection while using WordPress installed on AWS EC2 Using the Free tier EC2 server on Amazon with an active wordpress server requires a bit of work, namely that you need a script that will restart the mysqld service. However, it really help to add a swap file, not installed by default …
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Hits: 1858AWS EC2 CLI “AWS was not able to validate the provided access credentials” I am just trying to run my aws cli from a VM that I keep on a disk-on-key. I added the credentials several times, even creating new accounts. After a few hours of growing perturbance and desire for violence. Be …
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Hits: 2291last year I got stuck simply installing my PC with Windows 10 Pro from OEM envelope. I had downloaded the installation iso. Every time I installed it insisted on putting only the home version. IN order to get it to work, you need to add the file pid.txt to the source dir on the …
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Hits: 387Here is the source file that is used to create docker’s silly container names. Source: moby/names-generator.go at master · moby/moby The left side has an adjective like “affectionate”, “agitated”, “amazing”, “angry”, “awesome”, “beautiful”, “blissful”, “bold”, “boring”, “brave”, “busy”, The right side show ignorance of special people as it is based on names from notable …
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Hits: 1635Automation is often a lot of work, even just installing curl Ubuntu is a social creature and does not like to be automated as much as you might expect. Very often your automation gets stuck because all of a sudden the folks at Canonical decided that they prefer human interaction. Often Ansible just hangs! …
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Hits: 1441Develop On Openshift on your Windows 10 Laptop As part of our Work we install and configure Openshift. We offer full solutions from installation through the Devops pipeline. I have found that using minishift with VirtualBox to be the easiest Proof of Concept as well as the ability to develop applications and Infrastructure as …
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