starting etcd.service fails

[dulhaver]

I have build etcd for rhel8, put the binaries, that came out from that onto a server and added a systemd unit file.

starting the etvd.service fails however

Every 1,0s: sudo cat /var/log/messages | egrep 'May 12 11:54'                                          rd5428: Mon May 12 11:54:32 2025

May 12 11:54:00 rd5428 systemd[1]: Started Session 58125 of user <username>.
May 12 11:54:00 rd5428 systemd-logind[972]: New session 58125 of user <username>.
May 12 11:54:00 rd5428 systemd[1]: Starting etcd Server...
May 12 11:54:00 rd5428 systemd[2484107]: etcd.service: Failed to execute command: Permission denied
May 12 11:54:00 rd5428 kernel: audit: type=1400 audit(1747043640.060:19): avc:  denied  { execute } for  pid=2484107 comm="(etcd)" name="etcd
" dev="dm-8" ino=25165954 scontext=system_u:system_r:init_t:s0 tcontext=unconfined_u:object_r:unlabeled_t:s0 tclass=file permissive=0
May 12 11:54:00 rd5428 systemd[2484107]: etcd.service: Failed at step EXEC spawning /opt/custom/etcd/bin/etcd: Permission denied
May 12 11:54:00 rd5428 systemd[1]: etcd.service: Main process exited, code=exited, status=203/EXEC
May 12 11:54:00 rd5428 systemd[1]: etcd.service: Failed with result 'exit-code'.
May 12 11:54:00 rd5428 systemd[1]: Failed to start etcd Server.
May 12 11:54:00 rd5428 systemd[1]: session-58125.scope: Succeeded.
May 12 11:54:00 rd5428 systemd-logind[972]: Session 58125 logged out. Waiting for processes to exit.
May 12 11:54:00 rd5428 systemd-logind[972]: Removed session 58125.
May 12 11:54:00 rd5428 systemd[1]: etcd.service: Service RestartSec=100ms expired, scheduling restart.
May 12 11:54:00 rd5428 systemd[1]: etcd.service: Scheduled restart job, restart counter is at 1.
May 12 11:54:00 rd5428 systemd[1]: Stopped etcd Server.
May 12 11:54:00 rd5428 systemd[1]: Starting etcd Server...
May 12 11:54:00 rd5428 kernel: audit: type=1400 audit(1747043640.282:20): avc:  denied  { execute } for  pid=2484115 comm="(etcd)" name="etcd
" dev="dm-8" ino=25165954 scontext=system_u:system_r:init_t:s0 tcontext=unconfined_u:object_r:unlabeled_t:s0 tclass=file permissive=0
May 12 11:54:00 rd5428 systemd[2484115]: etcd.service: Failed to execute command: Permission denied
May 12 11:54:00 rd5428 systemd[2484115]: etcd.service: Failed at step EXEC spawning /opt/custom/etcd/bin/etcd: Permission denied
May 12 11:54:00 rd5428 systemd[1]: etcd.service: Main process exited, code=exited, status=203/EXEC
May 12 11:54:00 rd5428 systemd[1]: etcd.service: Failed with result 'exit-code'.
May 12 11:54:00 rd5428 systemd[1]: Failed to start etcd Server.
May 12 11:54:00 rd5428 systemd[1]: etcd.service: Service RestartSec=100ms expired, scheduling restart.

Failed to execute command: Permission denied is the essence I draw from here. However when I run etcd --version as the etcd user it works find

my unit file is

$ cat /etc/systemd/system/etcd.service

# based on: https://raw.githubusercontent.com/etcd-io/etcd/refs/heads/main/contrib/systemd/etcd.service

[Unit]
Description=etcd Server
After=network.target
After=network-online.target
Wants=network-online.target

[Service]
Type=notify
WorkingDirectory=/opt/custom/etcd/
EnvironmentFile=-/opt/custom/etcd/etcd.conf
# User=etcd
User=etcd
# set GOMAXPROCS to number of processors
# ExecStart=/bin/bash -c "GOMAXPROCS=$(nproc) /opt/custom/etcd/bin/etcd"
ExecStart=/opt/custom/etcd/bin/etcd
Restart=on-failure
LimitNOFILE=65536

[Install]
WantedBy=multi-user.target

any hint, what is failing would be appreciated.

[dulhaver]

a colleague helped me out. It was a selinux issue.

restorecon -RFvv $(pwd) on the base directory that includes my bin directory fixed this