pwgen and git not available in container

aptly.sh

@@ -1,18 +1,16 @@
 #!/bin/bash
 
-passphrase="$(pwgen -1 -n 20)"
-
 cat >keyparms <<EOF
      %echo Generating a basic OpenPGP key
      Key-Type: DSA
      Key-Length: 1024
      Subkey-Type: ELG-E
      Subkey-Length: 1024
-     Name-Real: $(git config user.name)
+     Name-Real: $USER_NAME
      Name-Comment: dev deb repo
-     Name-Email: $(git config user.email)
+     Name-Email: $USER_EMAIL
      Expire-Date: 0
-     Passphrase: ${passphrase}
+     Passphrase: $PASSPHRASE
      %commit
      %echo done
 EOF
@@ -22,5 +20,5 @@ gpg --export --armor > /signing-key/dev.pubkey
 
 aptly repo create --component="main" --distribution="ubuntu" dev
 aptly repo add dev /packages
-aptly publish repo --batch --passphrase="${passphrase}" dev
+aptly publish repo --batch --passphrase="$PASSPHRASE" dev
 aptly serve