download: Have wget retry 3 times

This forces wget to retry if it gets a network error. Signed-off-by: Stéphane Graber <stgraber@ubuntu.com> Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>

download: Have wget retry 3 times
acabe1fa · Stéphane Graber · c00f3f36 · acabe1fa
Commit acabe1fa authored Jul 21, 2014 by Stéphane Graber
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Showing with 12 additions and 2 deletions

lxc-download.in templates/lxc-download.in +12 -2

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--- a/templates/lxc-download.in
+++ b/templates/lxc-download.in
@@ -69,9 +69,19 @@ cleanup() {
    fi
 }

+wget_wrapper() {
+    for i in $(seq 3); do
+        if wget $@; then
+            return 0
+        fi
+    done
+
+    return 1
+}
+
 download_file() {
-    if ! wget -T 30 -q https://${DOWNLOAD_SERVER}/$1 -O $2 >/dev/null 2>&1; then
-        if ! wget -T 30 -q http://${DOWNLOAD_SERVER}/$1 -O $2 >/dev/null 2>&1; then
+    if ! wget_wrapper -T 30 -q https://${DOWNLOAD_SERVER}/$1 -O $2 >/dev/null 2>&1; then
+        if ! wget_wrapper -T 30 -q http://${DOWNLOAD_SERVER}/$1 -O $2 >/dev/null 2>&1; then
            if [ "$3" = "noexit" ]; then
                return 1
            else