Merge pull request #686 from darko-poljak/letsencrypt_cert_explorers_fix

Check if certbot exists before using it. Fixes #685.

cdist/conf/type/__letsencrypt_cert/explorer/certificate-domains

@@ -1,4 +1,8 @@
 #!/bin/sh -e
 
-certbot certificates --cert-name "${__object_id:?}" | grep '    Domains: ' | \
-	cut -d ' ' -f 6- | tr ' ' '\n'
+certbot_path=$("${__type_explorer}/certbot-path")
+if [ -n "${certbot_path}" ]
+then
+	certbot certificates --cert-name "${__object_id:?}" | grep '    Domains: ' | \
+		cut -d ' ' -f 6- | tr ' ' '\n'
+fi

cdist/conf/type/__letsencrypt_cert/explorer/certificate-exists

@@ -1,7 +1,13 @@
 #!/bin/sh -e
 
-if certbot certificates | grep -q "  Certificate Name: ${__object_id:?}$"; then
-	echo yes
+certbot_path=$("${__type_explorer}/certbot-path")
+if [ -n "${certbot_path}" ]
+then
+	if certbot certificates | grep -q "  Certificate Name: ${__object_id:?}$"; then
+		echo yes
+	else
+		echo no
+	fi
 else
 	echo no
 fi

cdist/conf/type/__letsencrypt_cert/explorer/certificate-is-test

@@ -1,8 +1,14 @@
 #!/bin/sh -e
 
-if certbot certificates --cert-name "${__object_id:?}" | \
-	grep -q 'INVALID: TEST_CERT'; then
-	echo yes
+certbot_path=$("${__type_explorer}/certbot-path")
+if [ -n "${certbot_path}" ]
+then
+	if certbot certificates --cert-name "${__object_id:?}" | \
+		grep -q 'INVALID: TEST_CERT'; then
+		echo yes
+	else
+		echo no
+	fi
 else
 	echo no
 fi