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The default GlusterFS setup does not encrypt its communication. Use the method below enable encryption.
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{{{#!highlight bash
#!/bin/sh
if [ ! -e /etc/ssl/glusterfs ]
then
        mkdir -p /etc/ssl/glusterfs
fi

cd /etc/ssl/glusterfs

# create the server keys
openssl genrsa -out gluster01.key 2048
openssl genrsa -out gluster02.key 2048
openssl genrsa -out gluster03.key 2048
openssl genrsa -out gluster04.key 2048

# sign the server certificates
openssl req -new -x509 -key gluster01.key -subj "/CN=gluster01" -out gluster01.pem
openssl req -new -x509 -key gluster02.key -subj "/CN=gluster02" -out gluster02.pem
openssl req -new -x509 -key gluster03.key -subj "/CN=gluster03" -out gluster03.pem
openssl req -new -x509 -key gluster04.key -subj "/CN=gluster04" -out gluster04.pem

# create the client keys
openssl genrsa -out glusterclient01.key 2048

# sign the client certificates
openssl req -new -x509 -key glusterclient01.key -subj "/CN=glusterclient01" -out glusterclient01.pem

# server certificates authorities
cat gluster01.key gluster02.key gluster03.key gluster04.key glusterclient01.pem > glusterfs.ca
# client certificates authorities
cat gluster01.key gluster02.key gluster03.key gluster04.key > glusterfs-client.ca
}}}

== Keys ==

On each of the Glusterfs servers and clients run.
== Keys and Certificates ==
Make an encryption key and make sure to set the `CN` to match the name of the host. Repeat this on the client and on each of the servers.
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openssl genrsa -out glusterfs.key 2048 openssl genrsa -out gluster01.key 2048
openssl req -new -x509 -key gluster01.key -subj "/CN=gluster01" -out gluster01.pem
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== Certificates ==
Now sign certificates using those keys. Replace the `CN` so it matches the host you are siging the certificate for.
== Certificate Authorities ==
Compile all the certificates in one place and concatenate them into two files. `glusterfs.ca` and `glusterfs-client.ca`.
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openssl req -new -x509 -key glusterfs.key -subj "/CN=gluster01" -out glusterfs.pem cat gluster01.pem gluster02.pem gluster03.pem gluster04.pem glusterclient01.pem > glusterfs.ca
cat gluster01.pem gluster02.pem gluster03.pem gluster04.pem > glusterfs-client.ca
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== Compile ==

Compile all the certificates into one large file
{{{
scp gluster01:/etc/ssl/glusterfs/gluster.pem gluster01.pem
scp gluster02:/etc/ssl/glusterfs/gluster.pem gluster02.pem
scp gluster03:/etc/ssl/glusterfs/gluster.pem gluster03.pem
scp gluster04:/etc/ssl/glusterfs/gluster.pem gluster04.pem
scp glusterclient01:/etc/ssl/glusterfs/gluster.pem glusterclient01.pem
cat gluster01.pem gluster02.pem gluster03.pem gluster04.pem > glusterfs.ca
}}}
Copy `glusterfs.ca` to `/etc/ssl` on all servers. Copy `glusterfs-client.ca` to `/etc/ssl` on the client.

GlusterFS Encryption

The default GlusterFS setup does not encrypt its communication. Use the method below enable encryption.

Keys and Certificates

Make an encryption key and make sure to set the CN to match the name of the host. Repeat this on the client and on each of the servers.

mkdir /etc/ssl/glusterfs
cd /etc/ssl/glusterfs
openssl genrsa -out gluster01.key 2048
openssl req -new -x509 -key gluster01.key -subj "/CN=gluster01" -out gluster01.pem

Certificate Authorities

Compile all the certificates in one place and concatenate them into two files. glusterfs.ca and glusterfs-client.ca.

cat gluster01.pem gluster02.pem gluster03.pem gluster04.pem glusterclient01.pem > glusterfs.ca
cat gluster01.pem gluster02.pem gluster03.pem gluster04.pem > glusterfs-client.ca

Copy glusterfs.ca to /etc/ssl on all servers. Copy glusterfs-client.ca to /etc/ssl on the client.

None: GlusterFS Encryption (last edited 2021-03-26 21:25:57 by Kristian Kallenberg)