Docker is software that enables operating system-level virtualization known as containers. It utilizes the resource isolation features of the Linux kernel, such as cgroups and kernel namespaces, and others to allow the execution of independent containers within a single Linux instance.
Docker provides a way to safely run isolated applications in a container, packed with all its dependencies and libraries.
If you are Docker users today we are going to talk about an application that may possibly interest you.
About Dry
Dry is a free, cross-platform, open source application that runs from the command line to manage Docker.
This tool shows us information about containers, images, and networks , and, if a Docker Swarm is running, it also shows all kinds of information about the state of the Swarm cluster.
It can connect to local or remote Docker daemons.
In addition to displaying information, it can be used to manage Docker . Most of the commands available in the official Docker CLI are also available in Dry with the same behavior.
How to install Dry on Linux?
Dry is available as a single binary, making its installation on Linux very simple.
For those who are users of Arch Linux, Manjaro and derivatives of these, Dry can be found in the AUR , so you must have AUR enabled in your pacman.conf file.
To install it, you only have to type the following command:
pacaur -S dry-bin
It is also possible to install Dry from Docker as a container, so if you want to install it this way you should type the following:
docker run -it -v /var/run/docker.sock:/var/run/docker.sock moncho/dry
The last way to install Dry on Linux is by downloading a script that will handle the installation.
We must open a terminal and execute the following commands:
curl -sSf https://moncho.github.io/dry/dryup.sh | sudo sh
sudo chmod 755 /usr/local/bin/dry
Once the installation is complete , we can begin using the application on our systems.
How to use Dry?
To start using this application on our system, we must open a terminal and run the following command:
dry
When doing this, a window similar to this one should appear, where it shows that dry is already in operation and displays the information.
Dry can be used using some keys, so taking the information from its official space on github , the accesses are as follows:
Global Keys
| Key | Description |
|---|---|
| % | Show filter list |
| F1 | Sort the list |
| F5 | update list |
| F8 | show dockable disk usage |
| F9 | show last 10 docker events |
| F10 | display docker information |
| 1 | show container list |
| 2 | show image list |
| 3 | show network list |
| 4 | show node list (in Swarm mode) |
| 5 | show the list of services (in Swarm mode) |
| Arrowup | move cursor up one line |
| Arrowdown | move the cursor down one line |
| g | move the cursor to the top |
| G | move the cursor to the bottom |
| q | get out of dry |
Commands for containers
| Link key | Description |
|---|---|
| Enter | displays the container command menu |
| F2 | enable / disable showing stopped containers |
| i | to inspect |
| l | container logs |
| e | withdraw |
| s | statistics |
| Ctrl + e | remove all stopped containers |
| Ctrl + k | kill |
| Ctrl + r | start / restart |
| Ctrl + t | stop |
Image commands
| Key or combination | Description |
|---|---|
| i | historial |
| r | run command in new container |
| Ctrl + d | remove hanging images |
| Ctrl + e | remove the image |
| Ctrl + f | Delete image |
| Enter | to inspect |
Network commands
| Key or combination | Description |
|---|---|
| Ctrl + e | remove network |
| Enter | to inspect |
Service commands
| Key | Description |
|---|---|
| i | inspect service |
| l | service records |
| Ctrl + r | remove service |
| Ctrl + s | stopover service |
| Enter | show service tasks |
Move through buffers
| Key | Description |
|---|---|
| g | move the cursor to the beginning of the buffer |
| G | move the cursor to the end of the buffer |
| n | after the search, advance to the next search result |
| N | after the search, go back to the previous search result |
| s | attempting |
| pg up | move cursor 'screen size' lines up |
| pg down | move cursor 'screen size' lines down |