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**Podman** adalah alat untuk mengelola kontainer dan gambar kontainer. Berbeda dengan [[Docker]], Podman memungkinkan pengguna untuk membuat, menjalankan, menghentikan, dan menghapus kontainer tanpa perlu ''[[daemon]]'' atau layanan latar belakang. == Izinkan ''host loopback'' Kontainer ''rootless'' atau kontainer secara ''default'' tidak bisa mengakses IP ''host loopback'' sehingga, semua aplikasi seperti ''database'' dan ''web server'' yang berjalan di host tidak bisa mengakses aplikasi yang berjalan di dalam kontainer. Akses ''host loopback'' bisa diberikan ke kontainer dengan menyertakan opsi [@--net slirp4netns:allow_host_loopback=true@] saat menjalankan perintah [@podman run@]. == Error validating CNI config file(s) Masalah ini diketahui merupakan [[https://bugs.launchpad.net/ubuntu/+source/libpod/+bug/2024394 | bug]] di Podman versi 3.4.4 di Ubuntu. Seorang [[https://bugs.launchpad.net/ubuntu/+source/libpod/+bug/2024394/comments/2 | pengguna]] menyarankan untuk mengupgrade paket `containernetwork-plugins`. {{{text wget http://archive.ubuntu.com/ubuntu/pool/universe/g/golang-github-containernetworking-plugins/containernetworking-plugins_1.1.1+ds1-3_amd64.deb sudo apt install ./containernetworking-plugins_1.1.1+ds1-3_amd64.deb }}} Sedangkan [[https://bugs.launchpad.net/ubuntu/+source/libpod/+bug/2024394/comments/12 | pengguna lain]] menyebut bahwa mengupgrade podman ke versi terbaru menggunakan repo Kubic dapat juga mengatasi masalah ini untuk sementara. {{{ sudo mkdir -p /etc/apt/keyrings curl -fsSL "https://download.opensuse.org/repositories/devel:kubic:libcontainers:unstable/xUbuntu_$(lsb_release -rs)/Release.key" \ | gpg --dearmor \ | sudo tee /etc/apt/keyrings/devel_kubic_libcontainers_unstable.gpg > /dev/null echo \ "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/devel_kubic_libcontainers_unstable.gpg]\ https://download.opensuse.org/repositories/devel:kubic:libcontainers:unstable/xUbuntu_$(lsb_release -rs)/ /" \ | sudo tee /etc/apt/sources.list.d/devel:kubic:libcontainers:unstable.list > /dev/null sudo apt-get update -qq sudo apt-get -qq -y install podman }}} == docker-compose: permission denied Kesalahan ini disebabkan oleh [@ docker-compose @] tidak bisa mengakses ''socket'' Podman. {{{bash echo 'export DOCKER_HOST=unix:///run/user/$UID/podman/podman.sock' >> .bashrc source .bashrc }}} == Kontainer tidak dapat terhubung ke host {{{bash mkdir -p ~/.config/containers nano containers.conf }}} Kemudian masukkan: {{{ [containers] rootless_networking = "cni" }}} == Kenapa tidak bisa menggunakan sudo dengan Podman ''rootless''? """All of this still doesn't explain why you cannot use sudo and su with rootless containers. The answer is that sudo and su do not create a login session. There are many historical reasons for this, most stemming from the fact that sudo and su are somewhat irregular (one user becoming another user, instead of a fresh login). See this GitHub issue for details. Given this, rootless Podman cannot be used with sudo and su unless loginctl enable-linger is used to force a persistent user session to be created for the user.""" -- [[https://www.redhat.com/sysadmin/sudo-rootless-podman | Why can't I use sudo with rootless Podman?]] == Tidak bisa ''mount'' volume ke ''rootless container'', izin ditolak Dari [[https://github.com/containers/podman/blob/main/troubleshooting.md#2-cant-use-volume-mount-get-permission-denied]] disebutkan: """Labeling systems like SELinux require that proper labels are placed on volume content mounted into a container. Without a label, the security system might prevent the processes running inside the container from using the content. By default, Podman does not change the labels set by the OS.""" """To change a label in the container context, you can add either of two suffixes :z or :Z to the volume mount. These suffixes tell Podman to relabel file objects on the shared volumes. The z option tells Podman that two containers share the volume content. As a result, Podman labels the content with a shared content label. Shared volume labels allow all containers to read/write content. The Z option tells Podman to label the content with a private unshared label. Only the current container can use a private volume.""" ---- [[Kategori Self-hosting]] | [[Kategori Teknologi kontainer]]
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