Vault server systemd

vault.service

### BEGIN INIT INFO
# Provides:          vault
# Required-Start:    $local_fs $remote_fs
# Required-Stop:     $local_fs $remote_fs
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Vault server
# Description:       Vault secret management tool
### END INIT INFO

[Unit]
Description=Vault secret management tool
Requires=network-online.target
After=network-online.target

[Service]
User=vault
Group=vault
PIDFile=/var/run/vault/vault.pid
PermissionsStartOnly=true
ExecStartPre=-/bin/mkdir -p /var/run/vault
ExecStartPre=/bin/chown -R vault:vault /var/run/vault
ExecStart=/usr/local/bin/vault server \
    -config=/usr/local/etc/vault/vault_server.hcl \
    -log-level=debug
ExecReload=/bin/kill -HUP $MAINPID
LimitNOFILE=65536
KillMode=process
KillSignal=SIGTERM
Restart=on-failure
RestartSec=42s
LimitMEMLOCK=infinity

[Install]
WantedBy=multi-user.target