Docker: Add "isContainerRunning"

Change-Id: I2e22f5fb0ed86b0f7d61dc47c23696c00ec875ea
Reviewed-by: hjk <hjk@qt.io>

src/plugins/docker/dockerapi.cpp

@@ -54,6 +54,26 @@ bool DockerApi::canConnect()
     return result;
 }
 
+bool DockerApi::isContainerRunning(const QString &containerId)
+{
+    Process process;
+    FilePath dockerExe = dockerClient();
+    if (dockerExe.isEmpty() || !dockerExe.isExecutableFile())
+        return false;
+
+    process.setCommand(
+        CommandLine(dockerExe, QStringList{"inspect", "--format", "{{.State.Running}}", containerId}));
+    process.runBlocking();
+
+    if (process.result() == ProcessResult::FinishedWithSuccess) {
+        QString output = process.readAllStandardOutput().trimmed();
+        if (output == "true")
+            return true;
+    }
+
+    return false;
+}
+
 void DockerApi::checkCanConnect(bool async)
 {
     if (async) {

src/plugins/docker/dockerapi.h

@@ -44,6 +44,8 @@ public:
     static void recheckDockerDaemon();
     QFuture<Utils::expected_str<QList<Network>>> networks();
 
+    bool isContainerRunning(const QString &containerId);
+
 signals:
     void dockerDaemonAvailableChanged();