nixcfg/deploy.sh

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#!/usr/bin/env bash
# Get cluster subdirectory name
cd $(dirname $0)
CLUSTER="$1"
if [ -z "$CLUSTER" ] || [ ! -d "cluster/$CLUSTER" ]; then
echo "Usage: $0 <cluster name>"
echo "The cluster name must be the name of a subdirectory of cluster/"
exit 1
fi
shift 1
# Do actual stuff
if [ -z "$1" ]; then
NIXHOSTLIST=$(ls cluster/$CLUSTER/node | grep -v '\.site\.')
else
NIXHOSTLIST="$@"
fi
TMP_PATH=/tmp/tmp-deploy-$(date +%s)
SSH_CONFIG=cluster/$CLUSTER/ssh_config
YEAR=$(date +%Y)
for NIXHOST in $NIXHOSTLIST; do
NIXHOST=${NIXHOST%.*}
if [ -z "$SSH_USER" ]; then
SSH_DEST=$NIXHOST
else
SSH_DEST=$SSH_USER@$NIXHOST
fi
echo "==== DOING $NIXHOST ===="
echo "Sending NixOS config files"
ssh -F $SSH_CONFIG $SSH_DEST mkdir -p $TMP_PATH $TMP_PATH/pki
cat nix/configuration.nix | ssh -F $SSH_CONFIG $SSH_DEST tee $TMP_PATH/configuration.nix > /dev/null
cat nix/deuxfleurs.nix | ssh -F $SSH_CONFIG $SSH_DEST tee $TMP_PATH/deuxfleurs.nix > /dev/null
cat nix/remote-unlock.nix | ssh -F $SSH_CONFIG $SSH_DEST tee $TMP_PATH/remote-unlock.nix > /dev/null
cat nix/wesher.nix | ssh -F $SSH_CONFIG $SSH_DEST tee $TMP_PATH/wesher.nix > /dev/null
cat nix/wesher_service.nix | ssh -F $SSH_CONFIG $SSH_DEST tee $TMP_PATH/wesher_service.nix > /dev/null
cat cluster/$CLUSTER/cluster.nix | ssh -F $SSH_CONFIG $SSH_DEST tee $TMP_PATH/cluster.nix > /dev/null
cat cluster/$CLUSTER/node/$NIXHOST.nix | ssh -F $SSH_CONFIG $SSH_DEST tee $TMP_PATH/node.nix > /dev/null
cat cluster/$CLUSTER/node/$NIXHOST.site.nix | ssh -F $SSH_CONFIG $SSH_DEST tee $TMP_PATH/site.nix > /dev/null
echo "Sending secret files"
for SECRET in pki/consul-ca.crt pki/consul$YEAR.crt pki/consul$YEAR.key \
pki/consul$YEAR-client.crt pki/consul$YEAR-client.key \
pki/nomad-ca.crt pki/nomad$YEAR.crt pki/nomad$YEAR.key; do
test -f cluster/$CLUSTER/secrets/$SECRET && (cat cluster/$CLUSTER/secrets/$SECRET | ssh -F $SSH_CONFIG $SSH_DEST tee $TMP_PATH/$SECRET > /dev/null)
done
echo "Rebuilding NixOS"
ssh -F $SSH_CONFIG $SSH_DEST tee $TMP_PATH/deploy.sh > /dev/null <<EOF
set -ex
cd $TMP_PATH
mv deuxfleurs.nix remote-unlock.nix wesher.nix wesher_service.nix configuration.nix cluster.nix node.nix site.nix /etc/nixos
nixos-rebuild switch
mkdir -p /var/lib/nomad/pki /var/lib/consul/pki
if [ -f pki/consul-ca.crt ]; then
cp pki/consul* /var/lib/nomad/pki
mv pki/consul* /var/lib/consul/pki
chown -R consul:root /var/lib/consul/pki
fi
if [ -f pki/nomad-ca.crt ]; then
mv pki/nomad* /var/lib/nomad/pki
fi
# Save up-to-date Consul client certificates in Consul itself
export CONSUL_HTTP_ADDR=https://localhost:8501
export CONSUL_CACERT=/var/lib/consul/pki/consul-ca.crt
export CONSUL_CLIENT_CERT=/var/lib/consul/pki/consul$YEAR-client.crt
export CONSUL_CLIENT_KEY=/var/lib/consul/pki/consul$YEAR-client.key
consul kv put secrets/consul/consul-ca.crt - < /var/lib/consul/pki/consul-ca.crt
consul kv put secrets/consul/consul-client.crt - < /var/lib/consul/pki/consul$YEAR-client.crt
consul kv put secrets/consul/consul-client.key - < /var/lib/consul/pki/consul$YEAR-client.key
EOF
ssh -t -F $SSH_CONFIG $SSH_DEST sudo sh $TMP_PATH/deploy.sh
ssh -F $SSH_CONFIG $SSH_DEST rm -rv '/tmp/tmp-deploy-*'
done