mirror of
https://github.com/cmehay/pyentrypoint
synced 2024-10-30 15:21:11 +00:00
Add set_environment in settings
```yaml set_environment: - ENV_1: echo 'The environment variable ENV_1 will be added with this phrase' - ENV_2: head /dev/urandom | base64 - ENV_3: echo ${ENV_1} and ${ENV_2} are now available here - ENV_4: exit 1 || true # Set like this if you need to ignore error ```
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@ -1,3 +1,6 @@
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v0.7.2
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- add set_environment in settings
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v0.7.1
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v0.7.1
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- add envtobool function in configuration template
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- add envtobool function in configuration template
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12
README.md
12
README.md
@ -14,6 +14,9 @@ This tool avoids writing shell scripts to:
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## Changelog
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## Changelog
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###### v0.7.2 (2020-05-30)
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- add set_environment in settings
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###### v0.7.1 (2020-05-24)
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###### v0.7.1 (2020-05-24)
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- add envtobool function in configuration template
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- add envtobool function in configuration template
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@ -161,6 +164,15 @@ links:
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# true by default
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# true by default
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required: true
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required: true
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# Set custom environment variable by running commands
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# Will run before pre_conf_commands and capture stdout only
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# Stop init if crash
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set_environment:
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- ENV_1: echo 'The environment variable ENV_1 will be added with this phrase'
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- ENV_2: head /dev/urandom | base64
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- ENV_3: echo ${ENV_1} and ${ENV_2} are now available here
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- ENV_4: exit 1 || true # Set like this if you need to ignore error
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# Commands to run before applying configuration
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# Commands to run before applying configuration
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pre_conf_commands:
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pre_conf_commands:
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- echo something > to_this_file
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- echo something > to_this_file
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@ -76,6 +76,15 @@ This is an example of ``entrypoint-config.yml`` file.
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# true by default
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# true by default
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required: true
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required: true
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# Set custom environment variable by running commands
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# Will run before pre_conf_commands and capture stdout only
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# Stop init if crash
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set_environment:
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- ENV_1: echo 'The environment variable ENV_1 will be added with this phrase'
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- ENV_2: head /dev/urandom | base64
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- ENV_3: echo ${ENV_1} and ${ENV_2} are now available here
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- ENV_4: exit 1 || true # Add this if you need to ignore error
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# Commands to run before applying configuration
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# Commands to run before applying configuration
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pre_conf_commands:
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pre_conf_commands:
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- echo something > to_this_file
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- echo something > to_this_file
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@ -233,6 +233,12 @@ class Config(ConfigMeta):
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else:
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else:
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return ['-*']
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return ['-*']
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@property
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def set_environment(self):
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"""Set environment variables at runtime"""
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return self._get_by_command(item='set_environment',
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value_types=[list, dict])
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@property
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@property
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def user(self):
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def user(self):
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"Unix user or uid to run command."
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"Unix user or uid to run command."
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@ -30,7 +30,7 @@ class Entrypoint(object):
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def __init__(self, conf=ENTRYPOINT_FILE, args=[]):
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def __init__(self, conf=ENTRYPOINT_FILE, args=[]):
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self._set_logguer()
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self._set_logguer()
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if 'ENTRYPOINT_CONFIG' in os.environ:
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if os.environ.get('ENTRYPOINT_CONFIG'):
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conf = os.environ['ENTRYPOINT_CONFIG']
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conf = os.environ['ENTRYPOINT_CONFIG']
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try:
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try:
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self.config = Config(conf=conf, args=args)
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self.config = Config(conf=conf, args=args)
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@ -91,16 +91,25 @@ class Entrypoint(object):
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envtobool=envtobool,
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envtobool=envtobool,
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containers=DockerLinks().to_containers()))
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containers=DockerLinks().to_containers()))
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def run_set_enviroment(self):
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for set_env in self.config.set_environment:
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if not isinstance(set_env, dict) and not len(set_env) == 1:
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raise Exception("set_environment is miss configured, "
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"please check syntax in entrypoint config")
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env, cmd = next(((e, c) for e, c in set_env.items()))
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self.log.debug(f'Set environment variable {env}')
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os.environ[env] = self.runner.run_cmd(cmd, stdout=True)
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def run_pre_conf_cmds(self):
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def run_pre_conf_cmds(self):
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for cmd in self.config.pre_conf_commands:
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for cmd in self.config.pre_conf_commands:
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self.runner.run_cmd(cmd)
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self.runner.run_cmd(cmd)
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if 'ENTRYPOINT_PRECONF_COMMAND' in os.environ:
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if os.environ.get('ENTRYPOINT_PRECONF_COMMAND'):
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self.runner.run_cmd(os.environ['ENTRYPOINT_PRECONF_COMMAND'])
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self.runner.run_cmd(os.environ['ENTRYPOINT_PRECONF_COMMAND'])
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def run_post_conf_cmds(self):
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def run_post_conf_cmds(self):
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for cmd in self.config.post_conf_commands:
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for cmd in self.config.post_conf_commands:
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self.runner.run_cmd(cmd)
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self.runner.run_cmd(cmd)
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if 'ENTRYPOINT_POSTCONF_COMMAND' in os.environ:
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if os.environ.get('ENTRYPOINT_POSTCONF_COMMAND'):
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self.runner.run_cmd(os.environ['ENTRYPOINT_POSTCONF_COMMAND'])
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self.runner.run_cmd(os.environ['ENTRYPOINT_POSTCONF_COMMAND'])
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def launch(self):
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def launch(self):
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@ -117,6 +126,7 @@ def main(argv):
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entry.launch()
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entry.launch()
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entry.config.set_to_env()
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entry.config.set_to_env()
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entry.log.debug("Starting config")
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entry.log.debug("Starting config")
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entry.run_set_enviroment()
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entry.run_pre_conf_cmds()
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entry.run_pre_conf_cmds()
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entry.apply_conf()
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entry.apply_conf()
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entry.run_post_conf_cmds()
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entry.run_post_conf_cmds()
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@ -2,7 +2,7 @@
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from multiprocessing import Process
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from multiprocessing import Process
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from subprocess import PIPE
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from subprocess import PIPE
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from subprocess import Popen
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from subprocess import Popen
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from sys import stdout
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from sys import stdout as stdoutput
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from .logs import Logs
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from .logs import Logs
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@ -15,13 +15,13 @@ class Runner(object):
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self.cmds = cmds
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self.cmds = cmds
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self.raw_output = config.raw_output
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self.raw_output = config.raw_output
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def run_cmd(self, cmd):
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def run_cmd(self, cmd, stdout=False):
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self.log.debug('run command: {}'.format(cmd))
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self.log.debug('run command: {}'.format(cmd))
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proc = Popen(cmd, shell=True, stdout=PIPE, stderr=PIPE)
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proc = Popen(cmd, shell=True, stdout=PIPE, stderr=PIPE)
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out, err = proc.communicate()
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out, err = proc.communicate()
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def dispout(output, cb):
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def dispout(output, cb):
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enc = stdout.encoding or 'UTF-8'
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enc = stdoutput.encoding or 'UTF-8'
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output = output.decode(enc).split('\n')
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output = output.decode(enc).split('\n')
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lenght = len(output)
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lenght = len(output)
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for c, line in enumerate(output):
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for c, line in enumerate(output):
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break
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break
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cb(line)
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cb(line)
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if out:
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display_cb = self.log.info if not self.raw_output else print
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dispout(out, display_cb)
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if err:
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if err:
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display_cb = self.log.warning if not self.raw_output else print
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display_cb = self.log.warning if not self.raw_output else print
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dispout(err, display_cb)
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dispout(err, display_cb)
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if out:
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display_cb = self.log.info if not self.raw_output else print
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if stdout:
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return out.decode()
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dispout(out, display_cb)
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if proc.returncode:
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if proc.returncode:
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raise Exception('Command exit code: {}'.format(proc.returncode))
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raise Exception('Command exit code: {}'.format(proc.returncode))
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- echo TEST > /tmp/OK
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- echo TEST > /tmp/OK
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- echo "INFO IS DISPLAYED"
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- echo "INFO IS DISPLAYED"
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- echo "WARNING IS DISPLAYED\nON TWO LINES" 1>&2
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- echo "WARNING IS DISPLAYED\nON TWO LINES" 1>&2
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- echo ${ENV_1} > /tmp_env_1
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post_conf_commands:
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post_conf_commands:
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- echo TEST2 > /tmp/OKOK
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- echo TEST2 > /tmp/OKOK
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- echo ${ENTRYPOINT_DEBUG} > /tmp/debug
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- echo ${ENTRYPOINT_DEBUG} > /tmp/debug
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- echo "INFO IS DISPLAYED\nON TWO LINES"
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- echo "INFO IS DISPLAYED\nON TWO LINES"
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- echo "WARNING IS DISPLAYED" 1>&2
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- echo "WARNING IS DISPLAYED" 1>&2
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- echo ${ENV_2} > /tmp_env_2
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set_environment:
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- ENV_1: echo ENV_1 set
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- ENV_2: echo ENV_2 set
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debug: true
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debug: true
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- zsh:
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- zsh:
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- cmd9
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- cmd9
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set_environment:
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- bash:
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- ENV_1: echo set ENV_1
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- zsh:
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- ENV_2: echo set ENV_2
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debug:
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debug:
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- zsh: false
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- zsh: false
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- '*sh': true
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- '*sh': true
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('/tmp/user', '1000'),
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('/tmp/user', '1000'),
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('/tmp/group', '1000'),
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('/tmp/group', '1000'),
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('/tmp/debug', 'true'),
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('/tmp/debug', 'true'),
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('/tmp_env_1', 'ENV_1 set'),
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('/tmp_env_2', 'ENV_2 set')
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]
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]
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os.environ['ENTRYPOINT_PRECONF_COMMAND'] = 'echo TEST4 > /tmp/OKOKOKOK'
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os.environ['ENTRYPOINT_PRECONF_COMMAND'] = 'echo TEST4 > /tmp/OKOKOKOK'
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os.environ['ENTRYPOINT_POSTCONF_COMMAND'] = 'echo TEST5 > /tmp/OKOKOKOKOK'
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os.environ['ENTRYPOINT_POSTCONF_COMMAND'] = 'echo TEST5 > /tmp/OKOKOKOKOK'
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entry.config.set_to_env()
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entry.config.set_to_env()
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entry.run_set_enviroment()
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entry.run_pre_conf_cmds()
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entry.run_pre_conf_cmds()
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entry.run_post_conf_cmds()
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entry.run_post_conf_cmds()
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'cmd5',
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'cmd5',
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]
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]
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assert bash.config.set_environment == [
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{'ENV_1': 'echo set ENV_1'}
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]
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assert zsh.config.set_environment == [
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{'ENV_2': 'echo set ENV_2'}
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]
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assert bash.config.post_run_commands == [
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assert bash.config.post_run_commands == [
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'cmd7',
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'cmd7',
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'cmd8',
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'cmd8',
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def test_reloader():
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def test_reloader():
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if 'ENTRYPOINT_DISABLE_RELOAD' in os.environ:
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if os.environ.get('ENTRYPOINT_DISABLE_RELOAD'):
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os.environ.pop('ENTRYPOINT_DISABLE_RELOAD')
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os.environ.pop('ENTRYPOINT_DISABLE_RELOAD')
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with mock.patch('os.kill') as os_kill:
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with mock.patch('os.kill') as os_kill:
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def test_reloader_custom():
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def test_reloader_custom():
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if 'ENTRYPOINT_DISABLE_RELOAD' in os.environ:
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if os.environ.get('ENTRYPOINT_DISABLE_RELOAD'):
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os.environ.pop('ENTRYPOINT_DISABLE_RELOAD')
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os.environ.pop('ENTRYPOINT_DISABLE_RELOAD')
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subprocess.check_call(['mkdir', '-p', '/tmp/1', '/tmp/2'])
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subprocess.check_call(['mkdir', '-p', '/tmp/1', '/tmp/2'])
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