Systemd service for hashicorp vault. Use docker container

vault.service

[Unit]
Description=HashiCorp Vault Service (Docker container)
After=docker.service
Requires=docker.service

[Service]
TimeoutStartSec=0
Restart=always

Environment=VAULT_VERSION=1.11.3
Environment=VAULT_PORT=8200

ExecStartPre=-/usr/bin/docker exec vault stop
ExecStartPre=-/usr/bin/docker rm vault
ExecStartPre=/usr/bin/docker pull vault:${VAULT_VERSION}

ExecStart=/usr/bin/docker run --rm --name vault \
    --cap-add=IPC_LOCK \
    -v /opt/vault/config:/vault/config \
    -v /opt/vault/file:/vault/file \
    -v /opt/vault/logs:/vault/logs \
    -e VAULT_ADDR="http://127.0.0.1:${VAULT_PORT}" \
    -p ${VAULT_PORT}:${VAULT_PORT} \
    vault:${VAULT_VERSION} server