Distributed build tasks!!

1 files changed, 179 insertions, 0 deletions

diff --git a/buildscripts/build/build.sh b/buildscripts/build/build.sh
new file mode 100755
index 0000000..97b0f8a
--- /dev/null
+++ b/buildscripts/build/build.sh
@@ -0,0 +1,179 @@
+#!/usr/bin/bash
+
+frontend_port=3000
+server_port=8080
+ssh_port=34355
+
+frontend_node_ids=(2)
+server_node_ids=(4 5 6)
+
+build_dir="${HOME}/build"
+
+#server_name="usufslc-pi-cluster.bluezone.usu.edu"
+server_name="chessh.linux.usu.edu"
+load_balancer_nginx_site_file="/etc/nginx/sites-enabled/${server_name}.conf"
+ha_proxy_cfg="/etc/haproxy/haproxy.cfg"
+ssl_cert_path="/etc/letsencrypt/live/${server_name}"
+certbot_webroot_path="/var/www/html/${server_name}"
+load_balancer_nginx_site="
+upstream frontend {
+	$(printf "server 192.168.100.%s:${frontend_port};\n" ${frontend_node_ids[@]})
+}
+
+upstream api {
+	$(printf "server 192.168.100.%s:${server_port};\n" ${server_node_ids[@]})
+}
+
+server {
+	default_type  application/octet-stream;
+
+	server_name ${server_name};
+
+	listen 443 ssl;
+	ssl_certificate ${ssl_cert_path}/fullchain.pem;
+	ssl_certificate_key ${ssl_cert_path}/privkey.pem;
+	include /etc/letsencrypt/options-ssl-nginx.conf;
+	ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem;
+
+	location ~ /.well-known {
+		allow all;
+		default_type "text/plain";
+		alias ${certbot_webroot_path};
+	}	
+
+	location /api/ {
+		proxy_set_header Host \$host;
+		proxy_set_header X-Real-IP \$remote_addr;
+		proxy_pass http://api/;
+	}
+
+	location / {
+		proxy_set_header Host \$host;
+		proxy_set_header X-Real-IP \$remote_addr;
+		proxy_pass http://frontend/;
+	}
+}
+
+server {
+	if (\$host = ${server_name}) {
+		return 301 https://\$host\$request_uri;
+	}
+
+	server_name ${server_name};
+	listen 80;
+	return 404;
+}
+"
+# TODO: Servers should pull server ids from array
+ha_proxy_cfg="
+global\n
+	log /dev/log 	local0\n
+	log /dev/log	local1 notice\n
+	maxconn 2500\n
+	user haproxy\n
+	group haproxy\n
+	daemon\n
+\n
+defaults\n
+	log 	global\n
+	mode	tcp\n
+	timeout connect 10s\n
+	timeout client 36h\n
+	timeout server 36h\n
+	option 	dontlognull\n
+\n
+listen ssh\n
+	bind 	*:${ssh_port}\n
+	balance	leastconn\n
+	mode	tcp\n
+
+	server hostA  192.168.100.4:${ssh_port} check inter 10s fall 2 rise 1\n
+	server hostB  192.168.100.5:${ssh_port} check inter 10s fall 2 rise 1\n
+	server hostC  192.168.100.6:${ssh_port} check inter 10s fall 2 rise 1\n
+"
+echo $ha_proxy_cfg
+
+ssh_opts="-oStrictHostKeyChecking=no"
+
+function make_pi_node_conn_str() {
+    echo "pi$(printf "%04d" $1)@192.168.100.${1}"
+}
+
+function copy_ssh_keys() {
+    if [ ! -d  "${build_dir}/keys" ]
+    then
+        mkdir "${build_dir}/keys"
+        chmod 700 "${build_dir}/keys"
+        cd "${build_dir}/keys"
+
+        ssh-keygen -N "" -b 256  -t ecdsa -f ssh_host_ecdsa_key
+        ssh-keygen -N "" -b 1024 -t dsa -f ssh_host_dsa_key
+        ssh-keygen -N "" -b 2048 -t rsa -f ssh_host_rsa_key
+    fi
+    for node_id in "${server_node_ids[@]}"
+    do
+        node_conn=$(make_pi_node_conn_str $node_id)
+        scp -r $ssh_opts "${build_dir}/keys" $node_conn:~
+    done
+}
+
+
+function reload_nginx_confs() {
+    dead_files=("/etc/nginx/sites-enabled/default" "/etc/nginx/nginx.conf" "$load_balancer_nginx_site_file")
+    for file in "${dead_files[@]}"
+    do
+        [ -e $file ] && sudo rm $file
+    done
+    
+    sudo cp "${build_dir}/nginx.conf" /etc/nginx/nginx.conf
+    echo $load_balancer_nginx_site | sudo tee $load_balancer_nginx_site_file
+    
+    sudo systemctl restart nginx
+}
+
+function build_frontend() {
+    node_id=$1
+    node_conn=$(make_pi_node_conn_str $node_id)
+    
+    scp $ssh_opts "${build_dir}/.env" $node_conn:~
+    scp $ssh_opts "${build_dir}/build_front.sh" $node_conn:~/
+    ssh $ssh_opts $node_conn "~/build_front.sh"    
+}
+
+function build_frontend_nodes() {
+    for node_id in "${frontend_node_ids[@]}"
+    do
+        build_frontend $node_id
+    done
+}
+
+function build_server() {
+    node_id=$1
+	  node_conn=$(make_pi_node_conn_str $node_id)
+    temp_file=$(mktemp)
+    
+    cp "${build_dir}/.env" $temp_file
+    printf "\nNODE_ID=$node_id\n" >> $temp_file
+    scp $ssh_opts $temp_file $node_conn:~/.env
+
+    cp "${build_dir}/chessh.service" $temp_file
+    sed -i "s/\$BUILD_ENV/\/home\/pi$(printf "%04d" $1)\/.env/" $temp_file
+    scp -r $ssh_opts $temp_file $node_conn:~/chessh.service
+    
+    scp $ssh_opts "${build_dir}/build_server.sh" $node_conn:~/
+
+    ssh $ssh_opts $node_conn "~/build_server.sh"
+}
+
+function build_server_nodes() {
+    copy_ssh_keys
+    
+    for node_id in "${server_node_ids[@]}"
+    do
+        build_server $node_id
+    done
+}
+
+reload_nginx_confs
+build_server_nodes
+build_frontend_nodes