# RPM Import GPG Key

In the process of local repo setup/sync, I ran into a loop where RPM packages were downloaded but then removed due to a missing GPG key.

The reason `reposync` complains is that the upstream requires `gpgcheck`. For example:

```bash
[docker-ce]
name=Docker-CE Repository
baseurl=https://download.docker.com/linux/centos/7/$basearch/stable
enabled=1
gpgcheck=1
keepcache=0
gpgkey=https://download.docker.com/linux/centos/gpg

[docker-engine]
name=Docker-Engine Repository
baseurl=https://yum.dockerproject.org/repo/main/centos/7
enabled=1
gpgcheck=1
keepcache=0
gpgkey=https://yum.dockerproject.org/gpg
```

### Resolution
1. Disable `gpgcheck` in the upstream repo setting.
2. Import the GPG keys.

### To Import GPG Keys
Note: `gpg --import` is not the same as `rpm --import`.
```bash
https_proxy=http://proxy-url:8000 sudo -E rpm --import https://yum.dockerproject.org/gpg
```