def filesystem_diff(container):
client = Client()
raw_changes = client.diff(container)
changes = {}
for raw_change in raw_changes:
changes[raw_change['Path']] = raw_change['Kind']
return changes
def track_state_changes(container_name, persisted_fs_changes):
fout_cmd = open(get_command_track_filename(container_name), 'ab', 0)
fout_fs = open(get_filesystem_track_filename(container_name), 'ab', 0)
# react to every line added in the 'diff_trigger' file by the instrumented container
client = Client()
previous_changes = set()
fs_changes = persisted_fs_changes
print(fs_changes)
for line in execute_lines(['docker', 'exec', container_name, 'tail', '-f', '/tmp/record/diff_trigger']):
# store changes for every command
raw_changes = client.diff(container_name)
current_command_changes = []
for raw_change in raw_changes:
path = raw_change['Path']
if not path in fs_changes:
previous_changes.add(path)
path_change_timestamp = get_container_file_timestamp(container_name, path)
fs_changes[path] = path_change_timestamp
current_command_changes.append({'path': path, 'timestamp': path_change_timestamp})
fout_cmd.write((line.rstrip() + "\n").encode())
write_filesystem_changes(current_command_changes, fout_fs)
fout_fs.close()
fout_cmd.close()
