How To Install hadolint on Fedora 34
Introduction
In this tutorial we learn how to install hadolint on Fedora 34.
What is hadolint
A smarter Dockerfile linter that helps you build best practice Docker images. The linter is parsing the Dockerfile into an AST and performs rules on top of the AST. It is standing on the shoulders of ShellCheck to lint the Bash code inside RUN instructions.
We can use yum or dnf to install hadolint on Fedora 34. In this tutorial we discuss both methods but you only need to choose one of method to install hadolint.
Install hadolint on Fedora 34 Using dnf
Update yum database with dnf using the following command.
sudo dnf makecache --refresh
The output should look something like this:
Fedora 34 - x86_64 20 kB/s | 6.6 kB 00:00
Fedora 34 openh264 (From Cisco) - x86_64 1.4 kB/s | 989 B 00:00
Fedora Modular 34 - x86_64 68 kB/s | 6.5 kB 00:00
Fedora 34 - x86_64 - Updates 3.5 kB/s | 6.2 kB 00:01
Fedora Modular 34 - x86_64 - Updates 17 kB/s | 5.9 kB 00:00
Metadata cache created.
After updating yum database, We can install hadolint using dnf by running the following command:
sudo dnf -y install hadolint
Install hadolint on Fedora 34 Using yum
Update yum database with yum using the following command.
sudo yum makecache --refresh
The output should look something like this:
Fedora 34 - x86_64 20 kB/s | 6.6 kB 00:00
Fedora 34 openh264 (From Cisco) - x86_64 1.4 kB/s | 989 B 00:00
Fedora Modular 34 - x86_64 68 kB/s | 6.5 kB 00:00
Fedora 34 - x86_64 - Updates 3.5 kB/s | 6.2 kB 00:01
Fedora Modular 34 - x86_64 - Updates 17 kB/s | 5.9 kB 00:00
Metadata cache created.
After updating yum database, We can install hadolint using yum by running the following command:
sudo yum -y install hadolint
How To Uninstall hadolint on Fedora 34
To uninstall only the hadolint package we can use the following command:
sudo dnf remove hadolint
hadolint Package Contents on Fedora 34
/usr/bin/hadolint
/usr/lib/.build-id
/usr/lib/.build-id/b3
/usr/lib/.build-id/b3/1e1aa2d976833a988749b3c471a1c264e42f0d
/usr/share/bash-completion/completions/hadolint
/usr/share/doc/hadolint
/usr/share/doc/hadolint/README.md
/usr/share/licenses/hadolint
/usr/share/licenses/hadolint/LICENSE
/usr/bin/hadolint
/usr/lib/.build-id
/usr/lib/.build-id/cc
/usr/lib/.build-id/cc/b20d0796e5b8aff09083d44b06b25c71fc52b6
/usr/share/doc/hadolint
/usr/share/doc/hadolint/README.md
/usr/share/licenses/hadolint
/usr/share/licenses/hadolint/LICENSE
References
Summary
In this tutorial we learn how to install hadolint on Fedora 34 using yum and dnf.
