/// <summary>
/// Pulls the image from the remote repository if it does not exist locally
/// </summary>
/// <inheritdoc />
public override async Task <string> Resolve(CancellationToken ct = default)
{
if (ct.IsCancellationRequested)
{
return(null);
}
if (await CheckIfImageExists(ct))
{
return(ImageId);
}
// we must only pull an image once
// the API allows pulling the same image in parallel but suffers from race conditions that produces
// unpredictable results or errors
await ImagePullLocks.Get(ImageName).WaitAsync(ct);
try
{
if (!await CheckIfImageExists(ct))
{
await PullImage(ct);
}
}
finally
{
ImagePullLocks.Get(ImageName).Release();
}
return(ImageId);
}
/// <inheritdoc />
public async Task <string> Resolve(CancellationToken ct = default)
{
if (ct.IsCancellationRequested)
{
return(null);
}
if (await CheckIfNetworkExists(ct))
{
return(NetworkId);
}
// we must only create a single network name once
// the API allows creating multiple networks with the same name
// and when this name is referenced in a container, the command will fail complaining
// that there are more than 1 networks that matches the given name
await NetworkCreateLocks.Get(NetworkName).WaitAsync(ct);
try
{
if (!await CheckIfNetworkExists(ct))
{
await CreateNetwork(ct);
}
}
finally
{
NetworkCreateLocks.Get(NetworkName).Release();
}
return(NetworkId);
}