153 lines
3.7 KiB
PHP
153 lines
3.7 KiB
PHP
#!/usr/bin/php
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<?php
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const COMPOSE_FILE = "docker-compose.yml";
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const COMPOSE_BINARY = "docker-compose";
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function cin($trim = true, $lower = true)
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{
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$input = fgets(STDIN);
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if ($trim) {
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$input = trim($input);
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}
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if ($lower) {
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$input = strtolower($input);
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}
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return $input;
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}
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function println($w)
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{
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echo $w . "\n";
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}
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class DecomposerApp
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{
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/**
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* @var false|string
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*/
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private $root;
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public function __construct()
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{
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$this->checkBinary();
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$this->root = getcwd();
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println("Working in directory: " . $this->root);
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$this->checkComposeFile();
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$existing = false;
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if ($this->checkRunningContainers()) {
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$existing = true;
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println("There are existing containers. Do you want to export them? [y/n]");
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if (cin() != "y") {
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println("Canceling...");
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return;
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}
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} else {
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$this->startContainers();
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}
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if ($this->checkRunningContainers() && count($this->containerNames) > 0) {
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println("Exporting " . count($this->containerNames) . " images...");
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foreach ($this->containerNames as $name) {
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$this->exportContainer($name);
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}
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} else {
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throw new RuntimeException("Something went wrong. There is no containers detected.");
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}
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if($existing){
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println("Do you want to remove running containers? [y/n]");
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if (cin() == "y") {
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$this->removeContainers();
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}
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}else{
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$this->removeContainers();
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}
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println("Done");
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}
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function startContainers()
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{
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println("Starting containers...");
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println(shell_exec("docker-compose up -d"));
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}
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function exportContainer($name)
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{
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println("Creating image of " . $name . "...");
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println(shell_exec("docker commit " . $name . " " . $name));
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println("Exporting image to file...");
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println(shell_exec("docker save -o " . $name . ".tar " . $name . ":latest"));
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println("Removing image...");
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println(shell_exec("docker image rm " . $name . ":latest"));
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if (!file_exists($name . ".tar")) {
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throw new RuntimeException("Unable to find output image file");
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}
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}
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function removeContainers()
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{
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println("Removing containers...");
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println(shell_exec("docker-compose down -v --remove-orphans"));
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}
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function checkBinary()
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{
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$compose = @shell_exec("which " . COMPOSE_BINARY);
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if (!file_exists(trim($compose))) {
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throw new RuntimeException(COMPOSE_BINARY . " binary was not found in PATH");
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}
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}
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function checkComposeFile()
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{
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if (!file_exists($this->root . "/" . COMPOSE_FILE)) {
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throw new RuntimeException(COMPOSE_FILE . " was not found in " . $this->root);
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}
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}
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function checkRunningContainers(): bool
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{
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$running_data = @shell_exec("docker-compose ps");
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$running_data = explode("\n", trim($running_data));
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if (count($running_data) > 2) {
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$this->containerNames = [];
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for ($i = 2; $i < count($running_data); $i++) {
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$parts = explode(" ", $running_data[$i], 2);
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$this->containerNames[] = $parts[0];
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}
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foreach ($running_data as $row) {
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println(trim($row));
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}
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return true;
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}
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return false;
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}
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private $containerNames = [];
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}
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try {
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$app = new DecomposerApp();
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} catch (Exception $e) {
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echo "Error: " . $e->getMessage() . "\n";
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exit(1);
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} finally {
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echo "\n";
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}
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