/**
* Execute docker command
*
* @param string $containerName Container name
* @param string $envName Environment variable
*
* @return string|bool|null
*/
protected function getDockerEnv($containerName, $envName)
{
$ret = null;
if (empty($containerName)) {
$this->output->writeln('<p-error>No container specified</p-error>');
return false;
}
if (empty($envName)) {
$this->output->writeln('<p-error>No environment name specified</p-error>');
return false;
}
// Search updir for docker-compose.yml
$path = $this->getDockerPath();
if (!empty($path)) {
// Genrate full docker container name
$dockerContainerName = \CliTools\Utility\DockerUtility::getDockerInstanceName($containerName, 1, $path);
// Switch to directory of docker-compose.yml
PhpUtility::chdir($path);
// Get docker confguration (fetched directly from docker)
$conf = \CliTools\Utility\DockerUtility::getDockerConfiguration($dockerContainerName);
if (empty($conf)) {
throw new \RuntimeException('Could not read docker configuration from container "' . $dockerContainerName . '"');
}
if (!empty($conf->Config->Env[$envName])) {
$ret = $conf->Config->Env[$envName];
}
}
return $ret;
}
