Update certificates.

script/update-cert.sh

@@ -0,0 +1,22 @@
+#!/bin/sh
+
+set -e
+
+CERT_IMAGE="alpine:edge"
+
+# cd to the current directory so the script can be run from anywhere.
+cd `dirname $0`
+
+# Update the cert image.
+docker pull $CERT_IMAGE
+
+# Fetch the latest certificates.
+ID=$(docker run -d $CERT_IMAGE sh -c "apk --update upgrade && apk add ca-certificates && update-ca-certificates")
+docker logs -f $ID
+docker wait $ID
+
+# Update the local certificates.
+docker cp $ID:/etc/ssl/certs/ca-certificates.crt .
+
+# Cleanup.
+docker rm -f $ID