public override async Task Execute(ContainerRepositoryPollingContext context)
{
var containerRepository = context.ContainerRepository;
using (_log.BeginScope(new Dictionary <string, object>()
{
{ "Repository", containerRepository }
}))
{
try
{
_log.LogTrace("Fetching tags for {imagerepository}", containerRepository);
var client = await _registryClientPool.GetRegistryClientForRepository(containerRepository);
var remoteContainerRepositoryTags = await client.GetRepositoryTags(containerRepository);
var localContainerRepositoryTags =
await _containerImageMetadataService.GetTagsForRepository(containerRepository);
// remove tags and container images that we already know about
var newOrUpdatedContainerRepositoryTagsQuery = remoteContainerRepositoryTags
.Except(localContainerRepositoryTags);
// we don't need tags older than a month, so we'll truncate all the junk
newOrUpdatedContainerRepositoryTagsQuery = newOrUpdatedContainerRepositoryTagsQuery
.OrderByDescending(x => x.CreationDateTime)
.Where(x => x.CreationDateTime >= DateTimeOffset.Now.AddDays(-30))
.Take(20);
// ReSharper disable once PossibleMultipleEnumeration
var newOrUpdatedContainerRepositoryTags = newOrUpdatedContainerRepositoryTagsQuery.ToList();
if (newOrUpdatedContainerRepositoryTags.Any())
{
_log.LogInformation($"Adding '{newOrUpdatedContainerRepositoryTags.Count}' new image tags ...");
await _containerImageMetadataService.AddOrUpdate(newOrUpdatedContainerRepositoryTags);
}
}
catch (Exception e)
{
_log.LogWarning(e, "An error occured when fetching the latest image tags from the registry.");
}
}
}
public async Task <ContainerImage> GetContainerImageByTag(string repository, string tag)
{
var normalizedContainerRepository = NormalizeContainerRepository(repository);
var r = await _containerImageRepository.Query()
.FirstOrDefaultAsync(x => x.Name.Equals(normalizedContainerRepository));
var containerImageTags = await _containerImageTagRepository.Query()
.Where(x => x.RepositoryId == r.Id && x.Tag == tag)
.Include(x => x.Metadata)
.ToListAsync();
if (containerImageTags.Any())
{
return(containerImageTags
.Select(
x =>
new ContainerImage(
r.Name, x.Tag, x.Metadata.Hash,
DateTime.SpecifyKind(x.Metadata.CreatedDateTime, DateTimeKind.Utc)
)
)
.First());
}
// we did not find the tag into the local cache, try to get the tag information from remote
var client = await _registryClientPool.GetRegistryClientForRepository(repository);
var remoteContainerRepositoryTags = await client.GetRepositoryTags(repository);
var remoteContainerImage = remoteContainerRepositoryTags.FirstOrDefault(x => x.Tag == tag);
if (remoteContainerImage != null)
{
await AddOrUpdate(remoteContainerImage);
return(remoteContainerImage);
}
throw new InvalidOperationException("Could not find container image tag");
}
