increase the number of retries for apt-get

Author: ankit--sethi

x-pack/test/smb-fixture/src/main/java/org/elasticsearch/test/fixtures/smb/SmbTestContainer.java

@@ -27,6 +27,7 @@ public SmbTestContainer() {
             new ImageFromDockerfile("es-smb-fixture").withDockerfileFromBuilder(
                 builder -> builder.from(DOCKER_BASE_IMAGE)
                     .env("TZ", "Etc/UTC")
+                    .run("echo 'Acquire::Retries \"10\";' | sudo tee /etc/apt/apt.conf.d/80-retries")
                     .run("DEBIAN_FRONTEND=noninteractive apt-get update -qqy && apt-get install -qqy tzdata winbind samba ldap-utils")
                     .copy("fixture/provision/installsmb.sh", "/fixture/provision/installsmb.sh")
                     .copy("fixture/certs/ca.key", "/fixture/certs/ca.key")