Diseregard proxy for various confluent interactions

In some environments, http proxy is set for internet, but does not work internally.

Accommodate by suspending the proxy in confluent contexts.

confluent_osdeploy/common/initramfs/opt/confluent/bin/apiclient

@@ -24,6 +24,10 @@ except ImportError:
     json = None
     hmac = None
 
+# Ignore proxy-based environment variables
+for proxy_var in ['http_proxy', 'https_proxy', 'HTTP_PROXY', 'HTTPS_PROXY', 'ALL_PROXY', 'all_proxy', 'NO_PROXY', 'no_proxy']:
+    os.environ.pop(proxy_var, None)
+
 class InvalidApiKey(Exception):
     pass
 

confluent_osdeploy/common/profile/scripts/functions

@@ -4,7 +4,7 @@ function test_mgr() {
     if [[ "$whost" == *:* ]] && [[ "$whost" != *[* ]] ; then
         whost="[$whost]"
     fi
-    if curl -gs https://${whost}/confluent-api/ > /dev/null; then
+    if curl -gs -x "" https://${whost}/confluent-api/ > /dev/null; then
         return 0
     fi
     return 1
@@ -64,9 +64,9 @@ function set_confluent_vars() {
 }
 
 fetch_remote() {
-    curlargs=""
+    curlargs=(-x "")
     if [ -f /etc/confluent/ca.pem ]; then
-        curlargs=" --cacert /etc/confluent/ca.pem"
+        curlargs=(-x "" --cacert /etc/confluent/ca.pem)
     fi
     set_confluent_vars
     mkdir -p $(dirname $1)
@@ -74,7 +74,7 @@ fetch_remote() {
     if [[ "$whost" == *:* ]] && [[ "$whost" != *[* ]] ; then
         whost="[$whost]"
     fi
-    curl -gf -sS $curlargs https://$whost/confluent-public/os/$confluent_profile/scripts/$1 > $1
+    curl -gf -sS "${curlargs[@]}" https://$whost/confluent-public/os/$confluent_profile/scripts/$1 > $1
     if [ $? != 0 ]; then echo $1 failed to download; return 1; fi
 }
 
@@ -175,8 +175,9 @@ run_remote() {
 run_remote_python() {
     echo
     set_confluent_vars
+    curlargs=(-x "")
     if [ -f /etc/confluent/ca.pem ]; then
-        curlargs=" --cacert /etc/confluent/ca.pem"
+        curlargs=(-x "" --cacert /etc/confluent/ca.pem)
     fi
     echo '---------------------------------------------------------------------------'
     echo Running python script "'$*'" from https://$confluent_mgr/confluent-public/os/$confluent_profile/scripts/
@@ -189,7 +190,7 @@ run_remote_python() {
     if [[ "$whost" == *:* ]] && [[ "$whost" != *[* ]] ; then
         whost="[$whost]"
     fi
-    curl -gf -sS $curlargs https://$whost/confluent-public/os/$confluent_profile/scripts/$1 > $1
+    curl -gf -sS "${curlargs[@]}" https://$whost/confluent-public/os/$confluent_profile/scripts/$1 > $1
     if [ $? != 0 ]; then echo "'$*'" failed to download; return 1; fi
     confluentpython $*
     retcode=$?

confluent_osdeploy/common/profile/scripts/setupssh

@@ -2,6 +2,8 @@
 [ -f /etc/confluent/functions ] && . /etc/confluent/functions
 [ -f /opt/confluent/bin/apiclient ] && confapiclient=/opt/confluent/bin/apiclient
 [ -f /etc/confluent/apiclient ] && confapiclient=/etc/confluent/apiclient
+unset http_proxy
+unset https_proxy
 for pubkey in /etc/ssh/ssh_host*key.pub; do
     if [ "$pubkey" = /etc/ssh/ssh_host_key.pub ]; then
         continue