vault systemd servce

vault.service

[Unit]
Description=vault service
Requires=network-online.target
After=network-online.target
ConditionFileNotEmpty=/etc/vault/config.json

[Service]
EnvironmentFile=-/etc/sysconfig/vault
Environment=GOMAXPROCS=2
Restart=on-failure
ExecStart=/usr/local/bin/vault server -config=/etc/vault/config.json
StandardOutput=/var/log/vault-output.log
StandardError=/var/log/vault-error.log
LimitMEMLOCK=infinity
ExecReload=/bin/kill -HUP $MAINPID
KillSignal=SIGTERM

[Install]
WantedBy=multi-user.target

StandardOutput=/var/log/vault-output.log
StandardError=/var/log/vault-error.log

Should be:

StandardOutput=file:/var/log/vault-output.log
StandardError=file:/var/log/vault-error.log