Files
weave-scope/integration/315_ebpf_restart_test.sh
2017-08-17 16:39:27 +02:00

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#! /bin/bash
# shellcheck disable=SC1091
. ./config.sh
start_suite "Test with ebpf restarts and proc fallback"
weave_on "$HOST1" launch
# Manually start scope in order to start EbpfTracker in debug mode
DOCKER_HOST=tcp://${HOST1}:${DOCKER_PORT} CHECKPOINT_DISABLE=true \
WEAVESCOPE_DOCKER_ARGS="-e SCOPE_DEBUG_BPF=1" \
"${SCOPE}" launch
server_on "$HOST1"
client_on "$HOST1"
wait_for_containers "$HOST1" 60 nginx client
has_container "$HOST1" nginx
has_container "$HOST1" client
has_connection containers "$HOST1" client nginx
# shellcheck disable=SC2016
run_on "$HOST1" 'echo stop | sudo tee /proc/$(pidof scope-probe)/root/var/run/scope/debug-bpf'
sleep 5
server_on "$HOST1" "nginx2"
client_on "$HOST1" "client2" "nginx2"
wait_for_containers "$HOST1" 60 nginx2 client2
has_container "$HOST1" nginx2
has_container "$HOST1" client2
has_connection containers "$HOST1" client2 nginx2
# Save stdout for debugging output
exec 3>&1
assert_raises "docker_on $HOST1 logs weavescope 2>&1 | grep 'ebpf tracker died, restarting it' || (docker_on $HOST1 logs weavescope 2>&3 ; false)"
# shellcheck disable=SC2016
run_on "$HOST1" 'echo stop | sudo tee /proc/$(pidof scope-probe)/root/var/run/scope/debug-bpf'
sleep 5
server_on "$HOST1" "nginx3"
client_on "$HOST1" "client3" "nginx3"
wait_for_containers "$HOST1" 60 nginx3 client3
has_container "$HOST1" nginx3
has_container "$HOST1" client3
has_connection containers "$HOST1" client3 nginx3
assert_raises "docker_on $HOST1 logs weavescope 2>&1 | grep 'ebpf tracker died again, gently falling back to proc scanning' || (docker_on $HOST1 logs weavescope 2>&3 ; false)"
scope_end_suite