https://github.com/saulshanabrook/openssl-docker-daemon
https://github.com/saulshanabrook/openssl-docker-daemon
Last synced: 8 months ago
JSON representation
- Host: GitHub
- URL: https://github.com/saulshanabrook/openssl-docker-daemon
- Owner: saulshanabrook
- Created: 2016-01-12T22:06:16.000Z (over 9 years ago)
- Default Branch: master
- Last Pushed: 2016-01-12T22:07:06.000Z (over 9 years ago)
- Last Synced: 2025-02-15T08:17:03.777Z (8 months ago)
- Language: Shell
- Size: 1.95 KB
- Stars: 0
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# `openssl-docker-dameon`
Use this for genereating [authentication for a Docker daemon](https://docs.docker.com/engine/articles/https/).
```bash
# set HOST to the DNS name. If your host doesn't have one, just leave it off
# set IPS to a comma seperated list of additional IP addresses it should be
# accessible on. Leave off or blank only allow hostname
$ docker run --rm -v $PWD:/app -e HOST=your.host.com -e IPS="10.10.10.20,127.0.0.1" saulshanabrook/openssl-docker-daemon
+ your.host.com
set -o verbose
echo ${HOST:=no_dns}
+ echo your.host.com
PASS_PHRASE=$(openssl rand -base64 32)
+ openssl rand -base64 32
+ PASS_PHRASE=bTW5imjnyMHi5+mKnP7rg0Qhcn6II/eCv9r71Ol4m4M=
openssl genrsa \
-aes256 \
-out ca-key.pem \
-passout pass:${PASS_PHRASE} \
4096
+ openssl genrsa -aes256 -out ca-key.pem -passout pass:bTW5imjnyMHi5+mKnP7rg0Qhcn6II/eCv9r71Ol4m4M= 4096
Generating RSA private key, 4096 bit long modulus
............................................................................................................................................................................................................................++
.....................++
e is 65537 (0x10001)
openssl req \
-new \
-x509 \
-days 365 \
-key ca-key.pem \
-sha256 \
-out ca.pem \
-subj "/C=US/ST=Denial/L=Springfield/O=Dis/CN=$HOST" \
-passin pass:${PASS_PHRASE}
+ openssl req -new -x509 -days 365 -key ca-key.pem -sha256 -out ca.pem -subj /C=US/ST=Denial/L=Springfield/O=Dis/CN=your.host.com -passin pass:bTW5imjnyMHi5+mKnP7rg0Qhcn6II/eCv9r71Ol4m4M=
openssl genrsa -out server-key.pem 4096
+ openssl genrsa -out server-key.pem 4096
Generating RSA private key, 4096 bit long modulus
.....++
..................................++
e is 65537 (0x10001)
openssl req -subj "/CN=$HOST" -sha256 -new -key server-key.pem -out server.csr
+ openssl req -subj /CN=your.host.com -sha256 -new -key server-key.pem -out server.csr
if test -n "${IPS:-}"; then
echo subjectAltName = IP:$(echo $IPS | sed -e "s/,/,IP:/g") > extfile.cnf
else
echo > extfile.cnf
fi
+ test -n 10.10.10.20,127.0.0.1
+ echo 10.10.10.20,127.0.0.1
+ sed -e s/,/,IP:/g
+ echo subjectAltName = IP:10.10.10.20,IP:127.0.0.1
openssl x509 -req -days 365 -sha256 -in server.csr -CA ca.pem -CAkey ca-key.pem \
-CAcreateserial -out server-cert.pem -extfile extfile.cnf -passin pass:${PASS_PHRASE}
+ openssl x509 -req -days 365 -sha256 -in server.csr -CA ca.pem -CAkey ca-key.pem -CAcreateserial -out server-cert.pem -extfile extfile.cnf -passin pass:bTW5imjnyMHi5+mKnP7rg0Qhcn6II/eCv9r71Ol4m4M=
Signature ok
subject=/CN=your.host.com
Getting CA Private Key
openssl genrsa -out key.pem 4096
+ openssl genrsa -out key.pem 4096
Generating RSA private key, 4096 bit long modulus
......................................................................................................++
.....................................................++
e is 65537 (0x10001)
openssl req -subj '/CN=client' -new -key key.pem -out client.csr
+ openssl req -subj /CN=client -new -key key.pem -out client.csr
echo extendedKeyUsage = clientAuth > extfile.cnf
+ echo extendedKeyUsage = clientAuth
openssl x509 -req -days 365 -sha256 -in client.csr -CA ca.pem -CAkey ca-key.pem \
-CAcreateserial -out cert.pem -extfile extfile.cnf -passin pass:${PASS_PHRASE}
+ openssl x509 -req -days 365 -sha256 -in client.csr -CA ca.pem -CAkey ca-key.pem -CAcreateserial -out cert.pem -extfile extfile.cnf -passin pass:bTW5imjnyMHi5+mKnP7rg0Qhcn6II/eCv9r71Ol4m4M=
Signature ok
subject=/CN=client
Getting CA Private Key
rm client.csr server.csr extfile.cnf ca.srl ca-key.pem
+ rm client.csr server.csr extfile.cnf ca.srl ca-key.pem
```
We have now generated the proper certs
```bash
$ ls
ca.pem cert.pem key.pem server-cert.pem server-key.pem
```
And can start a docker daemon that requires authentication
```bash
$ docker daemon --tlsverify --tlscacert=ca.pem --tlscert=server-cert.pem --tlskey=server-key.pem \
-H=0.0.0.0:2376
```
And then connect to it, by either it's IP or hostname
```bash
$ docker --tlsverify --tlscacert=ca.pem --tlscert=cert.pem --tlskey=key.pem \
-H=$HOST:2376 version
```