Posted in Linux
Unable to configure the Docker daemon with file /etc/docker/daemon.json
Pesan eror yang ada pada judul terjadi ketika kita mencoba untuk melakukan konfigurasi docker menggunakan file yang berada di /etc/docker/daemon.json.
Ketika kita melakukan debugging menggunakan journalctl -xe -u docker , maka pesan berikut akan tampil
Aug 01 06:55:35 myhost systemd[1]: Starting Docker Application Container Engine... -- Subject: Unit docker.service has begun start-up -- Defined-By: systemd -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel -- -- Unit docker.service has begun starting up. Aug 01 06:55:35 myhost dockerd-current[10880]: unable to configure the Docker daemon with file /etc/docker/daemon.json: the following directives are specified both as a flag and in the configuration file: storage-driver: (from flag: overlay, from file: overlay) Aug 01 06:55:35 myhost systemd[1]: docker.service: main process exited, code=exited, status=1/FAILURE Aug 01 06:55:35 myhost systemd[1]: Failed to start Docker Application Container Engine. -- Subject: Unit docker.service has failed -- Defined-By: systemd -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel -- -- Unit docker.service has failed. -- -- The result is failed. Aug 01 06:55:35 myhost systemd[1]: Unit docker.service entered failed state. Aug 01 06:55:35 myhost systemd[1]: docker.service failed.
Akar permasalahan munculnya eror ini adalah karena konfigurasi /etc/docker/daemon.json konflik dengan konfigurasi storage default dari docker yang berada di /etc/sysconfig/docker-storage dan /etc/sysconfig/docker-storage-setup . Untuk mengatasi masalah ini, hapus saja 2 file yang konflik tersebut
rm -f /etc/sysconfig/docker-storage /etc/sysconfig/docker-storage-setup