Added curl installation check when remote download

Ticket: CFE-4405
Signed-off-by: Victor Moene <[email protected]>

Author: victormlg

cf_remote/nt-discovery.sh

@@ -51,4 +51,5 @@ run_command "command -v yum" "YUM" "Cannot find yum"
 run_command "command -v apt" "APT" "Cannot find apt"
 run_command "command -v pkg" "PKG" "Cannot find pkg"
 run_command "command -v zypper" "ZYPPER" "Cannot find zypper"
+run_command "command -v curl" "CURL" "Cannot find curl"
 

cf_remote/remote.py

@@ -255,7 +255,7 @@ def get_info(host, *, users=None, connection=None):
         data["agent_version"] = parse_version(discovery.get("NTD_CFAGENT_VERSION"))
 
         data["bin"] = {}
-        for bin in ["dpkg", "rpm", "yum", "apt", "pkg", "zypper"]:
+        for bin in ["dpkg", "rpm", "yum", "apt", "pkg", "zypper", "curl"]:
             path = discovery.get("NTD_{}".format(bin.upper()))
             if path:
                 data["bin"][bin] = path
@@ -515,6 +515,12 @@ def install_host(
         return 1
 
     if remote_download:
+        if data.get("bin") and not data.get("bin").get("curl"):
+            log.error(
+                "Couldn't download remotely. Curl is not installed on host '%s'" % host
+            )
+            return 1
+
         print("Downloading '%s' on '%s' using curl" % (package, host))
         r = ssh_cmd(
             cmd="curl --fail -O {}".format(package), connection=connection, errors=True