Add environment variable in frontend and ssl

frontend/.docker/add-env-vars.sh

@@ -0,0 +1,27 @@
+_writeFrontendEnvVars() {
+    ENV_JSON="$(jq --compact-output --null-input 'env | with_entries(select(.key | startswith("REACT_APP_")))')"
+    ENV_JSON_ESCAPED="$(printf "%s" "${ENV_JSON}" | sed -e 's/[\&/]/\\&/g')"
+    sed -i "s/<noscript id=\"env-insertion-point\"><\/noscript>/<script>var ENV=${ENV_JSON_ESCAPED}<\/script>/g" ${PUBLIC_HTML}index.html
+}
+
+_writeNginxEnvVars() {
+    dockerize -template /etc/nginx/conf.d/default.conf:/etc/nginx/conf.d/default.conf
+}
+
+_addSslConfig() {
+    SSL_CERTIFICATE=/etc/nginx/ssl/${1}/fullchain.pem;
+    SSL_CERTIFICATE_KEY=/etc/nginx/ssl/${1}/privkey.pem;
+    FILE_CONF=/etc/nginx/sites.d/${1}.conf
+
+    if [ -f ${SSL_CERTIFICATE} ] && [ -f ${SSL_CERTIFICATE_KEY} ]; then
+        echo 'include "include.d/ssl.conf";' >> ${FILE_CONF};
+        echo "ssl_certificate ${SSL_CERTIFICATE};" >> ${FILE_CONF};
+        echo "ssl_certificate_key ${SSL_CERTIFICATE_KEY};" >> ${FILE_CONF};
+    fi;
+}
+
+_writeFrontendEnvVars;
+_writeNginxEnvVars;
+
+_addSslConfig 'backend'
+_addSslConfig 'frontend'