1 files changed, 41 insertions, 0 deletions
diff --git a/packaging/docker/check_login.sh b/packaging/docker/check_login.sh
new file mode 100755
index 00000000..7cc8d4e5
--- /dev/null
+++ b/packaging/docker/check_login.sh
@@ -0,0 +1,41 @@
+#!/usr/bin/env bash
+#
+# This is a credential checker script, to help get early input on docker credentials status
+# If these are wrong, then build/publish has no point running
+#
+# Copyright: SPDX-License-Identifier: GPL-3.0-or-later
+#
+# Author  : Pavlos Emm. Katsoulakis (paul@netdata.cloud)
+
+set -e
+
+if [ "${BASH_VERSINFO[0]}" -lt "4" ]; then
+	echo "This mechanism currently can only run on BASH version 4 and above"
+	exit 1
+fi
+
+DOCKER_CMD="docker "
+
+# There is no reason to continue if we cannot log in to docker hub
+if [ -z ${DOCKER_USERNAME+x} ] || [ -z ${DOCKER_PWD+x} ]; then
+    echo "No docker hub username or password found, aborting without publishing"
+    exit 1
+fi
+
+# If we are not in netdata git repo, at the top level directory, fail
+TOP_LEVEL=$(basename "$(git rev-parse --show-toplevel)")
+CWD=$(git rev-parse --show-cdup)
+if [ -n "$CWD" ] || [ ! "${TOP_LEVEL}" == "netdata" ]; then
+    echo "Run as ./packaging/docker/$(basename "$0") from top level directory of netdata git repository"
+    echo "Docker build process aborted"
+    exit 1
+fi
+
+# Login to docker hub to allow futher operations
+echo "Attempting to login to docker"
+echo "$DOCKER_PWD" | $DOCKER_CMD login -u "$DOCKER_USERNAME" --password-stdin
+
+echo "Docker login successful!"
+$DOCKER_CMD logout
+
+echo "Docker login validation completed"