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为 dockered 服务创建 systemd 服务时出错

tag-icon • tag-icon systemd docker
为 dockered 服务创建 systemd 服务时出错

我尝试为 docker 服务创建一个 systemd 脚本：

[Unit]
Description=ScyllaDB 1
After=network-online.target docker.target
Wants=network-online.target systemd-networkd-wait-online.service docker.target

[Service]
Type=notify
Restart=on-failure
RestartSec=10s

User=foo
Group=users

WorkingDirectory=/home/foo/scylladb

ExecStartPre=/usr/bin/docker pull scylladb/scylla
ExecStart=/usr/bin/docker run --volume /home/foo/scylla1:/var/lib/scylla --name scylla1 \
    scylladb/scylla --developer-mode 1 --memory 1.5G --smp 3 \
    --listen-address 127.0.0.1 
    # --overprovisioned 1 --seeds 127.0.0.1 --broadcast-address 127.0.1.1
ExecStop=/usr/bin/docker stop scylla1

LimitNOFILE=1048576

ProtectSystem=full
NoNewPrivileges=true

[Install]
WantedBy=multi-user.target

我已经执行完毕：

sudo usermod -aG docker foo
mkdir -p /home/foo/scylla1/commitlog /home/foo/scylla1/data
sudo chown foo:users /home/foo/scylla1
sudo systemctl daemon-reload

编辑：当我尝试使用用户手动运行命令时，foo它工作正常，但在使用时sudo systemctl restart scylladb显示错误：

May 17 14:58:55 x systemd[1]: Stopped ScyllaDB 1.
May 17 14:58:55 x systemd[1]: Starting ScyllaDB 1...
May 17 14:58:55 x systemd[1]: scylladb.service: Control process exited, code=exited status=210
May 17 14:58:55 x systemd[1]: Failed to start ScyllaDB 1.
May 17 14:58:55 x systemd[1]: scylladb.service: Unit entered failed state.
May 17 14:58:55 x systemd[1]: scylladb.service: Failed with result 'exit-code'.

手动：

[foo@x ~]$ /usr/bin/docker pull scylladb/scylla
Using default tag: latest
latest: Pulling from scylladb/scylla
93857f76ae30: Already exists 
fcf3425de92f: Already exists 
a9768670d266: Already exists 
eaccce6402ed: Already exists 
a564f24ba7ea: Already exists 
c1c511852d0b: Already exists 
f9c8010402b4: Already exists 
654f38ed538a: Already exists 
64856b4587d3: Already exists 
74fbc1822a2d: Already exists 
fdeb9fe209e1: Already exists 
243856d4fcb5: Already exists 
0b59d050d95e: Already exists 
e677bcc6c3d3: Already exists 
ca2f175eb91a: Already exists 
912e754404b4: Already exists 
c80ea560f85c: Already exists 
9f2fa2f93fae: Already exists 
04cfbbeb59e2: Already exists 
a9996b00766d: Already exists 
1076dbbc8e7b: Already exists 
c4eda4b22480: Already exists 
Digest: sha256:9c9d23b9ab9bd392cf647d861edc1f48498f6c7ffd142ab9905c23cc3c463345
Status: Image is up to date for scylladb/scylla:latest
[foo@x ~]$ /usr/bin/docker pull scylladb/scylla^C
[foo@x ~]$ /usr/bin/docker run --volume /home/foo/scylla1:/var/lib/scylla --name scylla1 \
>         -d scylladb/scylla --developer-mode 1 --memory 1.5G --smp 3 \
>         --listen-address 127.0.0.1 
4c6e7685e5297028e582e7c19c75424dbf3160a0e46adb69325993d333dbae7e
[foo@x ~]$ /usr/bin/docker stop scylla1
scylla1

造成这种情况的可能原因是什么？

答案1

显然问题是因为工作目录不存在，它应该/home/foo/scylla1不存在/home/foo/scylladb，问题的第二部分是1.5G参数无效，1G或者2G工作正常。

这是最终的 systemdscylladb.service文件：

[Unit]
Description=ScyllaDB 1
After=network-online.target docker.target
Wants=network-online.target systemd-networkd-wait-online.service docker.target

[Service]
Type=simple
Restart=on-failure
RestartSec=10s

User=foo
Group=docker

WorkingDirectory=/home/foo/scylla1
ExecStartPre=/usr/bin/docker rm scylla1
ExecStart=/usr/bin/docker run --volume /home/foo/scylla1:/var/lib/scylla --name scylla1 scylladb/scylla --developer-mode 1 --memory 2G --smp 3 --listen-address 127.0.0.1 
    # --overprovisioned 1 --seeds 127.0.0.1 --broadcast-address 127.0.1.1
ExecStop=/usr/bin/docker stop scylla1

LimitNOFILE=1048576

ProtectSystem=full
NoNewPrivileges=true

[Install]
WantedBy=multi-user.target

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