Devops Blog – Openstack, Openshift,- Docker, Kubernetes, Swarm, Linux, Windows Stacks – Mongodb, An occasional opinion
Views: 4317 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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Views: 3459Troubleshoot 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 …
Views: 18482Error 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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Views: 3817AWS 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 …
Continue reading “Fixing Authorization Failure in Ubuntu VM AWS CLI by Synchronizing the Clock”
Views: 6837last 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 sources dir on the …
Continue reading “Windows 10 Pro Install Issues – Installs Home instead of Pro.”
Views: 3509Here 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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Views: 3652Automation 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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Views: 5331Develop 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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Views: 4826 This is my advice for using SES along side your new Charming Full email server. HmailServer does not currently have a catchall relay smtp function like Postfix or Sendmail in Linux. You can set up Roundcube to send ALL messages via SES with the following settings. Edit C:\inetpub\wwwroot\webmail\config\config.inc.php edit the line $config[‘smtp_server’] to the following. …
Views: 1628Prepare your own windows 2016 AMI with a random password for the new copy If you would like to prepare an AMI for yourself with a new password or for the marketplace Run: C:\ProgramData\Amazon\EC2-Windows\Launch\Scripts\InitializeInstance.ps1 –Schedule This tells the rebooted or new instance to produce new password that will be properly encrypted so you can …
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Views: 1005This is missing postfix config of mailbox dir, let see what else ? Recommended is to use the directory format to store email rather than the the older mbox format. The Maildir format is well supported by Dovecot and has some advantages (no locking, allows for easy incremental back-ups and restoring of individual messages.) …
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Views: 3689I am installing multiple systems with Linux Bonding and LACP mode 4 which uses IEEE 802.3ad Link Aggregation Policy. In the mean time I am looking at 2 links, as we are using Red Hat 6.9 https://developer.rackspace.com/blog/lacp-bonding-and-linux-configuration/ as well as the following: LACP bonding network interface setup A bonding network interface could be used …
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Views: 3051Introspection fails due to use of Host Name instead of UUID When I do introspection on baremetal servers that will be used as for Redhat TripleO Openstack 13 (This is the same as RDO Queens) I start with just one. Before this I import the instackenv.json file with all of the baremetal server details …