Merge branch 'packer-install-yq' into 'master'

feat: Make configuration management more reliable in the TF-template:

* install the yq package to AMI in order to get rid of `sed`-instructions
* remove a prepared copy of the Joe configuration file, use the latest version from the repository instead
See merge request postgres-ai/database-lab!366

Author: agneum

Diff for: packer/install-prereqs.sh

@@ -43,3 +43,8 @@ sudo /usr/local/bin/func-e use 1.19.1 # https://www.envoyproxy.io/docs/envoy/lat
 
 #install s3fs
 sudo apt install s3fs
+
+#install yq
+sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys CC86BB64
+sudo add-apt-repository ppa:rmescandon/yq
+sudo apt update && sudo apt install yq -y

Diff for: packer/joe.yml

@@ -48,11 +48,6 @@ build {
     destination = "/home/ubuntu/envoy.yaml"
   }
 
-  provisioner "file"{
-    source = "joe.yml"
-    destination = "/home/ubuntu/joe.yml"
-  }
-
   provisioner "shell" {
     environment_vars = ["dle_version=${var.dle_version}"]
     scripts = ["${path.root}/install-prereqs.sh", "${path.root}/install-envoy.sh"]