moved from docker to kubernetes (k3s) (#14)

Co-authored-by: Márcio Fernandes
Reviewed-on: #14

backup/gitea-backup-secret-deploy.sh

@@ -0,0 +1,8 @@
+#/bin/bash
+
+# set source env variables
+. ./.env
+export $(cut -d= -f1 ./.env)
+
+
+envsubst < secret.yaml | kubectl apply -f -