= Setup

TIP: Tested on a Raspberry Pi with "Buster"

NOTE: * *sudo su*   # if not already done

== Install prerequisites

[source,sh]
----
apt-get install apt-transport-https ca-certificates software-properties-common git gcc g++ make jq -y
curl -sL https://deb.nodesource.com/setup_15.x | sudo -E bash -
apt-get install -y nodejs
npm install -g pm2
----


== Download and install Docker.


[source,sh]
----
curl -fsSL get.docker.com -o get-docker.sh && sh get-docker.sh
usermod -aG docker pi
curl https://download.docker.com/linux/raspbian/gpg
----

== Give the ‘pi’ user the ability to run Docker.

[source,sh]
----
sudo usermod -aG docker pi
----

== Import Docker and swarmlab.io  keys 

[source,sh]
----
curl https://download.docker.com/linux/raspbian/gpg
cat > /root/get-certs-swarmlab <<'EOF'
registry_address=hub.swarmlab.io
registry_port=5443
mkdir -p /etc/docker/certs.d/$registry_address:$registry_port
openssl s_client -showcerts -connect $registry_address:$registry_port < /dev/null | sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' > /etc/docker/certs.d/$registry_address:$registry_port/ca.crt

registry_port=5480
mkdir -p /etc/docker/certs.d/$registry_address:$registry_port
openssl s_client -showcerts -connect $registry_address:$registry_port < /dev/null | sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' > /etc/docker/certs.d/$registry_address:$registry_port/ca.crt
EOF


chmod +x /root/get-certs-swarmlab
/root/get-certs-swarmlab

----

==  Add the Docker Repo.

[source,sh]
----
echo "deb https://download.docker.com/linux/raspbian/ buster stable" >> /etc/apt/sources.list
----


== Update your Pi.

[source,sh]
----
apt-get update
apt-get upgrade
----


== Start the Docker service.

[source,sh]
----
systemctl enable docker.service
systemctl start docker.service
----

== Verify that Docker is installed and running.

[source,sh]
----
docker info
docker ps
----

== install docker-compose

[source,sh]
----
apt-get install libffi-dev libssl-dev
apt install python3-dev
apt-get install -y python3 python3-pip
----

*python3* and *pip3* are installed, we can install Docker-Compose using the following command:

[source,sh]
----
pip3 install docker-compose
----

=== check it

docker-compose --version


docker-compose => 1.27.4



== Fix "x509: certificate signed by unknown authority" issue


* On Error:

Get https ://registry.vlabs.uniwa.gr:5080/v2/: x509: certificate

Pulling  ...
ERROR: Get https://registry.vlabs.uniwa.gr:5080/v2/: x509: certificate signed by unknown authority


http://docs.swarmlab.io/SwarmLab-HowTos/swarmlab/docs/swarmlab/docs/install/install-docker.html#fix-x509-certificate-signed-by-unknown-authority-issue[See here^]

or simple run:

[source,sh]
----
/root/get-certs-swarmlab
----

==  Install WireGuard

To install the most recent version of WireGuard, we’ll need packages from the Debian unstable release. 

[source,sh]
----
sh -c "echo 'deb http://deb.debian.org/debian/ unstable main' >> /etc/apt/sources.list.d/unstable.list"
sh -c "printf 'Package: *\nPin: release a=unstable\nPin-Priority: 90\n' >> /etc/apt/preferences.d/limit-unstable"
----

 Update and Install the WireGuard packages

[source,sh]
----
apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 04EE7237B7D453EC
apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 648ACFD622F3D138
apt update
apt install wireguard --assume-yes
----

== Create Keys

[source,sh]
----
(umask 077 && wg genkey > wg-private.key)
wg pubkey < wg-private.key > wg-public.key
----



== Reboot

NOTE: reboot



