From cc7335edc87c6ef34429b4df94f53973db520aac Mon Sep 17 00:00:00 2001 From: 0xb10c <0xb10c@gmail.com> Date: Fri, 1 Jul 2022 13:49:55 +0200 Subject: ci: run USDT interface test in a VM Our CI tasks are run by CirrusCI in Docker containers in a Google Compute Engine based Kubernetes environment. These containers have limited capabilities - especially CAP_SYS_ADMIN is missing. See https://github.com/bitcoin/bitcoin/issues/23296#issuecomment-1024920845 We need elevated privileges to hook into the USDT tracepoints. We use a CirrusCI "compute_engine_instance" (a VM, not a container) where we have the required privileges. The ubunut-mininmal-2204-lts was choosen with debian-11 being an alternative. Both pack an outdated 'bpfcc-tools' package (v0.18.0) from 2020. This version prints warnings to stderr during BPF bytecode compilation, which causes our functional test runner to fail. This is fixed in newer verison. Until debian-12 or a newer Ubuntu release is avaliable as image in GCE (https://cloud.google.com/compute/docs/images/os-details), we use a third-party and untrusted PPA that releases up-to-date versions of the package. The official iovisor (authors of BCC) PPA is outdated too. An alternative would be to compile BCC from source in the CI. Co-authored-by: MacroFake --- .cirrus.yml | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) (limited to '.cirrus.yml') diff --git a/.cirrus.yml b/.cirrus.yml index fcf1200d35..0a8d3d6e6f 100644 --- a/.cirrus.yml +++ b/.cirrus.yml @@ -259,12 +259,20 @@ task: MAKEJOBS: "-j4" # Avoid excessive memory use due to MSan task: - name: '[ASan + LSan + UBSan + integer, no depends] [jammy]' + name: '[ASan + LSan + UBSan + integer, no depends, USDT] [jammy]' << : *GLOBAL_TASK_TEMPLATE - container: - image: ubuntu:jammy + # We can't use a 'container' for the USDT interface tests as the CirrusCI + # containers don't have privileges to hook into bitcoind. CirrusCI uses + # Google Compute Engine instances: https://cirrus-ci.org/guide/custom-vms/ + # Images can be found here: https://cloud.google.com/compute/docs/images/os-details + compute_engine_instance: + image_project: ubuntu-os-cloud + image: family/ubuntu-2204-lts # when upgrading, check if we can drop "ADD_UNTRUSTED_BPFCC_PPA" + cpu: 4 + memory: 12G env: << : *CIRRUS_EPHEMERAL_WORKER_TEMPLATE_ENV + HOME: /root/ # Only needed for compute_engine_instance FILE_ENV: "./ci/test/00_setup_env_native_asan.sh" MAKEJOBS: "-j4" # Avoid excessive memory use -- cgit v1.2.3