public void ShouldNotRemoveAnyImage_WhenSpaceIsEnough()
{
var strategy = new ByDiskSpaceRecyclingStrategy(1, new Matchlist(), new Matchlist("dead,exited"), new Dictionary <string, DateTime>(), ImageDeletionOrderType.ByImageCreationDate); // 1GB
var images = new List <DockerImageNode>()
{
new DockerImageNode()
{
InspectResponse = new ImageInspectResponse()
{
ID = "A",
Created = DateTime.UtcNow.AddDays(-1), // 1 day,
Size = 200 * 1024 * 1024 // 200 MB
},
},
new DockerImageNode()
{
InspectResponse = new ImageInspectResponse()
{
ID = "B",
Created = DateTime.UtcNow.AddDays(-3), // 3 days
Size = 700 * 1024 * 1024 // 700 MB
},
},
};
_fixParentRef(images);
var imagesToBeRecycled = strategy.GetImagesToBeRecycledInOrder(images);
Assert.True(imagesToBeRecycled.Count == 0);
}
public void ShouldNotRemoveAnyImage_WhenNoImagesWereFound()
{
var strategy = new ByDiskSpaceRecyclingStrategy(0, new Matchlist(), new Matchlist("dead,exited"), new Dictionary <string, DateTime>(), ImageDeletionOrderType.ByImageCreationDate);
var imagesToBeRecycled = strategy.GetImagesToBeRecycledInOrder(new List <DockerImageNode>());
Assert.True(imagesToBeRecycled.Count == 0);
}
public void ShouldRemoveImagesInLastTouchDateOrder_WhenDeletionOrderSetToByImageLastTouchDate_UsingRecords()
{
var eventRecord = new Dictionary <string, DateTime>()
{
{ "A", DateTime.UtcNow.AddDays(-3) },
{ "B", DateTime.UtcNow.AddDays(-2) },
};
var strategy = new ByDiskSpaceRecyclingStrategy(0, new Matchlist(), new Matchlist("dead,exited"), eventRecord, ImageDeletionOrderType.ByImageLastTouchDate); // 200MB
var images = new List <DockerImageNode>()
{
new DockerImageNode()
{
InspectResponse = new ImageInspectResponse()
{
ID = "A",
Created = DateTime.UtcNow.AddDays(-5), // 5 day
Size = 100 * 1024 * 1024 // 100 MB
},
},
new DockerImageNode()
{
InspectResponse = new ImageInspectResponse()
{
ID = "B",
Created = DateTime.UtcNow.AddDays(-10), // 10 days
Size = 200 * 1024 * 1024 // 200 MB
},
},
new DockerImageNode()
{
InspectResponse = new ImageInspectResponse()
{
ID = "C",
Created = DateTime.UtcNow.AddDays(-15), // 15 days
Size = 300 * 1024 * 1024 // 300 MB
},
},
};
_fixParentRef(images);
var imagesToBeRecycled = strategy.GetImagesToBeRecycledInOrder(images);
Assert.True(imagesToBeRecycled.Count == 3);
Assert.True(string.Equals(imagesToBeRecycled[0].InspectResponse.ID, "A"));
Assert.True(string.Equals(imagesToBeRecycled[1].InspectResponse.ID, "B"));
Assert.True(string.Equals(imagesToBeRecycled[2].InspectResponse.ID, "C"));
eventRecord["C"] = DateTime.UtcNow.AddDays(-5);
imagesToBeRecycled = strategy.GetImagesToBeRecycledInOrder(images);
Assert.True(imagesToBeRecycled.Count == 3);
Assert.True(string.Equals(imagesToBeRecycled[0].InspectResponse.ID, "C"));
Assert.True(string.Equals(imagesToBeRecycled[1].InspectResponse.ID, "A"));
Assert.True(string.Equals(imagesToBeRecycled[2].InspectResponse.ID, "B"));
}
public void ShouldRemoveOldImages_WhenNoContainersWereFound_ByImageCreationDate()
{
var strategy = new ByDiskSpaceRecyclingStrategy(0.2, new Matchlist(), new Matchlist("dead,exited"), new Dictionary <string, DateTime>(), ImageDeletionOrderType.ByImageCreationDate); // 200MB
var images = new List <DockerImageNode>()
{
new DockerImageNode()
{
InspectResponse = new ImageInspectResponse()
{
ID = "A",
Created = DateTime.UtcNow.AddDays(-1), // 1 day
Size = 100 * 1024 * 1024 // 100 MB
},
},
new DockerImageNode()
{
InspectResponse = new ImageInspectResponse()
{
ID = "B",
Created = DateTime.UtcNow.AddDays(-3), // 3 days
Size = 200 * 1024 * 1024 // 200 MB
},
},
new DockerImageNode()
{
InspectResponse = new ImageInspectResponse()
{
ID = "C",
Created = DateTime.UtcNow.AddDays(-5), // 5 days
Size = 300 * 1024 * 1024 // 300 MB
},
},
};
_fixParentRef(images);
var imagesToBeRecycled = strategy.GetImagesToBeRecycledInOrder(images);
Assert.True(imagesToBeRecycled.Count == 2);
Assert.True(string.Equals(imagesToBeRecycled[0].InspectResponse.ID, "C"));
Assert.True(string.Equals(imagesToBeRecycled[1].InspectResponse.ID, "B"));
}
public void ShouldRemoveOldImages_InDependencyOrder_HaveNoRunningOrRestartingContainers_Partial()
{
var strategy = new ByDiskSpaceRecyclingStrategy(0.5, new Matchlist(), new Matchlist("dead,exited"), new Dictionary <string, DateTime>(), ImageDeletionOrderType.ByImageCreationDate); // 500MB
var images = new List <DockerImageNode>()
{
new DockerImageNode()
{
InspectResponse = new ImageInspectResponse()
{
ID = "A",
Created = DateTime.UtcNow.AddDays(-10), // 10 days
Size = 100 * 1024 * 1024 // 100 MB
},
Children = new List <DockerImageNode>()
{
new DockerImageNode()
{
InspectResponse = new ImageInspectResponse()
{
ID = "X",
Created = DateTime.UtcNow.AddDays(-8), // 8 days
Size = 200 * 1024 * 1024 // 200 MB
},
Children = new List <DockerImageNode>()
{
new DockerImageNode()
{
InspectResponse = new ImageInspectResponse()
{
ID = "Y",
Created = DateTime.UtcNow.AddDays(-5), // 5 days
Size = 300 * 1024 * 1024 // 300 MB
},
}
},
},
},
},
new DockerImageNode()
{
InspectResponse = new ImageInspectResponse()
{
ID = "B",
Created = DateTime.UtcNow.AddDays(-14), // 14 days
Size = 100 * 1024 * 1024 // 100 MB
},
Children = new List <DockerImageNode>()
{
new DockerImageNode()
{
InspectResponse = new ImageInspectResponse()
{
ID = "M",
Created = DateTime.UtcNow.AddDays(-5), // 5 days
Size = 200 * 1024 * 1024 // 200 MB
},
},
new DockerImageNode()
{
InspectResponse = new ImageInspectResponse()
{
ID = "N",
Created = DateTime.UtcNow.AddDays(-11), // 11 days
Size = 300 * 1024 * 1024 // 300 MB
},
},
},
},
new DockerImageNode()
{
InspectResponse = new ImageInspectResponse()
{
ID = "C",
Created = DateTime.UtcNow.AddDays(-30), // 30 days
Size = 100 * 1024 * 1024 // 100 MB
},
Children = new List <DockerImageNode>()
{
new DockerImageNode()
{
InspectResponse = new ImageInspectResponse()
{
ID = "J",
Created = DateTime.UtcNow.AddDays(-20), // 20 day
Size = 200 * 1024 * 1024 // 200 MB
},
Children = new List <DockerImageNode>()
{
new DockerImageNode()
{
InspectResponse = new ImageInspectResponse()
{
ID = "L",
Created = DateTime.UtcNow.AddDays(-10), // 10 days
Size = 300 * 1024 * 1024 // 300 MB
},
}
},
},
new DockerImageNode()
{
InspectResponse = new ImageInspectResponse()
{
ID = "K",
Created = DateTime.UtcNow.AddDays(-4), // 4 days
Size = 200 * 1024 * 1024 // 200 MB
},
},
},
},
};
_fixParentRef(images);
var imagesToBeRecycled = strategy.GetImagesToBeRecycledInOrder(images);
Assert.True(imagesToBeRecycled.Count == 5);
// Expected order: N,L,J,Y,X
Assert.True(string.Equals(imagesToBeRecycled[0].InspectResponse.ID, "N"));
Assert.True(string.Equals(imagesToBeRecycled[1].InspectResponse.ID, "L"));
Assert.True(string.Equals(imagesToBeRecycled[2].InspectResponse.ID, "J"));
Assert.True(string.Equals(imagesToBeRecycled[3].InspectResponse.ID, "Y"));
Assert.True(string.Equals(imagesToBeRecycled[4].InspectResponse.ID, "X"));
}
public void ShouldNotRemoveImage_WhenChildImagesHaveRunningOrRestartingContainer()
{
var strategy = new ByDiskSpaceRecyclingStrategy(0, new Matchlist(), new Matchlist("dead,exited"), new Dictionary <string, DateTime>(), ImageDeletionOrderType.ByImageCreationDate);
var images = new List <DockerImageNode>()
{
new DockerImageNode()
{
InspectResponse = new ImageInspectResponse()
{
ID = "A",
Created = DateTime.UtcNow.AddDays(-1), // 1 day
Size = 100 * 1024 * 1024 // 100 MB
},
Containers = new List <ContainerInspectResponse>()
{
new ContainerInspectResponse()
{
State = new ContainerState()
{
Status = "exited",
FinishedAt = DateTime.UtcNow.ToString(),
},
}
},
Children = new List <DockerImageNode>()
{
new DockerImageNode()
{
InspectResponse = new ImageInspectResponse()
{
ID = "C",
Created = DateTime.UtcNow.AddDays(-1), // 1 day
Size = 100 * 1024 * 1024 // 100 MB
},
Containers = new List <ContainerInspectResponse>()
{
new ContainerInspectResponse()
{
State = new ContainerState()
{
Status = "running",
},
}
},
Children = new List <DockerImageNode>()
{
new DockerImageNode()
{
InspectResponse = new ImageInspectResponse()
{
ID = "D",
Created = DateTime.UtcNow.AddDays(-1), // 1 day
Size = 100 * 1024 * 1024 // 100 MB
},
},
}
},
}
},
new DockerImageNode()
{
InspectResponse = new ImageInspectResponse()
{
ID = "B",
Created = DateTime.UtcNow.AddDays(-3), // 3 days
Size = 100 * 1024 * 1024 // 100 MB
},
Containers = new List <ContainerInspectResponse>()
{
new ContainerInspectResponse()
{
State = new ContainerState()
{
Status = "restarting",
},
},
new ContainerInspectResponse()
{
State = new ContainerState()
{
Status = "dead",
FinishedAt = DateTime.UtcNow.ToString(),
},
},
new ContainerInspectResponse()
{
State = new ContainerState()
{
Status = "paused",
},
}
},
},
};
_fixParentRef(images);
var imagesToBeRecycled = strategy.GetImagesToBeRecycledInOrder(images);
Assert.True(imagesToBeRecycled.Count == 1);
Assert.Equal(imagesToBeRecycled[0].InspectResponse.ID, "D");
}
