If there is a command that needs to run on startup/reboot, you can use the @reboot directive in cron to schedule it. Here is a simple example of logging the date to a file at startup. (crontab -l 2>/dev/null; echo “@reboot date >> ~/startup.log”) | sort -u | crontab – The sort command avoids duplicate … Bash: schedule a command that will be run at reboot using cron
A pod belonging to a deployment can be manually deleted, scaled down, or restarted to get a fresh pod. However, if all you have is a simple pod definition, these actions are not available. One way of restarting the pod is to output its full yaml definition and use ‘kubectl replace’ with the force option. … Kubernetes: restart a simple pod
One of the goals of Continuous Deployment (CD) is an automated deployment and patching process. And as your organization becomes more efficient at deployment and velocity increases, you want to ensure that availability is maintained while keeping risk to a minimum. Cloud Foundry supports route mapping that allows you to stand up a new live … CloudFoundry: Using Blue-Green deloyment and route mapping for continuous deployment
This article has been updated in October 2018 and is now tested for HAProxy 1.8.14. The reload functionality in HAProxy till now has always been “not perfect but good enough”, perhaps dropping a few connections under heavy load but within parameters everyone was willing to accept. And because of the potential impact, a reload was … HAProxy: Zero downtime reloads with HAProxy 1.8 on Ubuntu 16.04 with Systemd
This article has been updated in October 2018 and is now tested for HAProxy 1.8.14. The reload functionality in HAProxy till now has always been “not perfect but good enough”, perhaps dropping a few connections under heavy load but within parameters everyone was willing to accept. And because of the potential impact, a reload was … HAProxy: Zero downtime reloads with HAProxy 1.8 on Ubuntu 14.04