Docker Registry could be useful in various scenarios, but the most common would be containers orchestration software such as Kubernetes, OpenShift/OKD or Nomad. In example environment you could have Gitlab CI pipeline configured to build Docker image and push it to your registry and then let orchestration software to deploy it to a cluster. In order to install internal, private Docker Registry you need to install Docker package first. Then you need to grab certificate and start docker registry container: This way we start a registry container which will always be up and running. We bind it on port 443
I was trying to add some new packages and figured it out that my Ubuntu 21 is out of date. Unfortunately some time ago I unchecked all repositories in Software & Updates so my /etc/apt/sources.list was empty. But I managed to have it working properly adding this one: Next and I was more or less back on the track. How trivial was it just to be able to install default-jre package as I am trying to learn how to build custom deb packages.
Latest Clustercontrol – version 1.9.4 – installation somehow requires pg_stat_statements to be activated in PostgreSQL 14. I have never noticed it before, both on 9.6, 12 and 14. This is simple fix. Change postgresql.conf configuration file (which should be either in /etc or /var/lib/ in standard package installations): Then activate extension in psql: Restart server and you are done.
If you need to mirror remote repository and push it to another remote repo, then there is one thing you should do to be able to export all remote branches and not only the master. It will push all things remotely, but it varies from version to version so better double check.
Using CentOS7 templates on Azure could result in lack of LVM, swap and non auto-extendable partitions. Some other templates have such feature, but not all of them. In case you assigned bigger disk in Azure portal you need still to do few things. First delete /dev/sda2 partition: Then reboot to apply.
Old Zabbix Proxy 4.2 installation could be quite confusing as you cannot grab the latest one to work with old Zabbix server. Fortunately there is archive packages repository at repo.zabbix.com/zabbix/4.2/ubuntu/pool/main/z/zabbix/. You need to keep track which operating systemu should be used. Refer to server requirements as it will be the same. So it’s Ubuntu 14, 16 or 18. First you should grab repository package which can be found named zabbix-release. For example: After installation with dpkg command, you can install particular proxy package with either MySQL, PostgreSQL or SQLite3. If you choose MySQL then you need to manually install database
If you happen to use Proxmox’s LXC which stands for Linux Containers, then you might be interested in this one. Proxmox has this turnkey containers available to download from its UI. Among them there is WordPress. If you create a container using template then while creating remember to select nesting=on, because without this it will show permission denied on starting Apache2. Not quite familiar with nesting option but it is necessary to run this container.
PostgreSQL 14 has few improvements over previous versions, especially older ones, like 9.6. This includes automatic data direction using partitioning. So, let’s install it on CentOS 7. Then you should login to the database and set password: Basic configuration includes firewall setup (if it’s active), access control and performance settings: I strongly recommend visiting pgtune.leopard.in.ua for tuning parameters. Last thing is to set interface address on which server will be listening, it’s set in: Now you are good to go.
Theory and practice [204] This is the SI unit of resistance. 1 ohm is the electrical resistance between two points on a conductor when a constant potential difference of one volt between the two points causes a current of one ampere in the conductor. Most, if not all, components have internal resistance, such as batteries. It is not a property that is easily measurable. Circuits intended to show some principles assume that, for example, the power source is an ideal cell and any internal resistances are compensated by additional components of such a circuit, assuming a certain margin of error.