Add support for nix-snapshotter

go.mod

@@ -6,7 +6,7 @@ replace (
 	github.com/Microsoft/hcsshim => github.com/Microsoft/hcsshim v0.11.0
 	github.com/Mirantis/cri-dockerd => github.com/k3s-io/cri-dockerd v0.3.4-k3s1 // k3s/release-1.27
 	github.com/cloudnativelabs/kube-router/v2 => github.com/k3s-io/kube-router/v2 v2.0.1-0.20230508174102-b42e5faded1c
-	github.com/containerd/containerd => github.com/k3s-io/containerd v1.7.6-k3s1.27
+	github.com/containerd/containerd => github.com/pdtpartners/containerd v1.0.1-stargz.0.20240214083438-8c533e066c1c
 	github.com/coreos/go-systemd => github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e
 	github.com/docker/distribution => github.com/docker/distribution v2.8.2+incompatible
 	github.com/docker/docker => github.com/docker/docker v24.0.0-rc.2.0.20230801142700-69c9adb7d386+incompatible
@@ -97,7 +97,7 @@ require (
 	github.com/containerd/zfs v1.1.0
 	github.com/coreos/go-iptables v0.6.0
 	github.com/coreos/go-systemd v0.0.0-20191104093116-d3cd4ed1dbcf
-	github.com/docker/docker v23.0.3+incompatible
+	github.com/docker/docker v23.0.5+incompatible
 	github.com/erikdubbelboer/gspt v0.0.0-20190125194910-e68493906b83
 	github.com/flannel-io/flannel v0.22.2
 	github.com/go-bindata/go-bindata v3.1.2+incompatible
@@ -118,17 +118,18 @@ require (
 	github.com/natefinch/lumberjack v2.0.0+incompatible
 	github.com/onsi/ginkgo/v2 v2.9.4
 	github.com/onsi/gomega v1.27.6
-	github.com/opencontainers/runc v1.1.6
+	github.com/opencontainers/runc v1.1.9
 	github.com/opencontainers/selinux v1.11.0
 	github.com/otiai10/copy v1.7.0
+	github.com/pdtpartners/nix-snapshotter v0.1.2-0.20240214070632-154924c8d48c
 	github.com/pkg/errors v0.9.1
 	github.com/rancher/dynamiclistener v0.3.6-rc2
 	github.com/rancher/lasso v0.0.0-20221227210133-6ea88ca2fbcc
 	github.com/rancher/remotedialer v0.3.0
 	github.com/rancher/wharfie v0.5.3
 	github.com/rancher/wrangler v1.1.1
 	github.com/robfig/cron/v3 v3.0.1
-	github.com/rootless-containers/rootlesskit v1.0.1
+	github.com/rootless-containers/rootlesskit v1.1.1
 	github.com/sirupsen/logrus v1.9.3
 	github.com/spf13/pflag v1.0.5
 	github.com/stretchr/testify v1.8.4
@@ -167,6 +168,7 @@ require (
 require (
 	cloud.google.com/go/compute v1.18.0 // indirect
 	cloud.google.com/go/compute/metadata v0.2.3 // indirect
+	dario.cat/mergo v1.0.0 // indirect
 	github.com/AdaLogics/go-fuzz-headers v0.0.0-20230811130428-ced1acdcaa24 // indirect
 	github.com/AdamKorcz/go-118-fuzz-build v0.0.0-20230306123547-8075edf89bb0 // indirect
 	github.com/Azure/azure-sdk-for-go v56.3.0+incompatible // indirect
@@ -201,7 +203,7 @@ require (
 	github.com/chai2010/gettext-go v1.0.2 // indirect
 	github.com/checkpoint-restore/go-criu/v5 v5.3.0 // indirect
 	github.com/cilium/ebpf v0.9.1 // indirect
-	github.com/container-orchestrated-devices/container-device-interface v0.5.4 // indirect
+	github.com/container-orchestrated-devices/container-device-interface v0.6.0 // indirect
 	github.com/container-storage-interface/spec v1.7.0 // indirect
 	github.com/containerd/btrfs/v2 v2.0.0 // indirect
 	github.com/containerd/cgroups/v3 v3.0.2 // indirect
@@ -331,10 +333,11 @@ require (
 	github.com/nats-io/nkeys v0.4.4 // indirect
 	github.com/nats-io/nuid v1.0.1 // indirect
 	github.com/opencontainers/go-digest v1.0.0 // indirect
-	github.com/opencontainers/image-spec v1.1.0-rc3 // indirect
+	github.com/opencontainers/image-spec v1.1.0-rc4 // indirect
 	github.com/opencontainers/runtime-spec v1.1.0 // indirect
 	github.com/opencontainers/runtime-tools v0.9.1-0.20221107090550-2e043c6bd626 // indirect
 	github.com/pelletier/go-toml v1.9.5 // indirect
+	github.com/pelletier/go-toml/v2 v2.1.0 // indirect
 	github.com/peterbourgon/diskv v2.0.1+incompatible // indirect
 	github.com/pierrec/lz4 v2.6.0+incompatible // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
@@ -355,7 +358,7 @@ require (
 	github.com/syndtr/gocapability v0.0.0-20200815063812-42c35b437635 // indirect
 	github.com/tchap/go-patricia/v2 v2.3.1 // indirect
 	github.com/tmc/grpc-websocket-proxy v0.0.0-20220101234140-673ab2c3ae75 // indirect
-	github.com/urfave/cli/v2 v2.23.5 // indirect
+	github.com/urfave/cli/v2 v2.25.7 // indirect
 	github.com/vbatts/tar-split v0.11.5 // indirect
 	github.com/vishvananda/netns v0.0.4 // indirect
 	github.com/vmware/govmomi v0.30.0 // indirect
@@ -382,18 +385,18 @@ require (
 	go.starlark.net v0.0.0-20200306205701-8dd3e2ee1dd5 // indirect
 	go.uber.org/atomic v1.10.0 // indirect
 	go.uber.org/multierr v1.9.0 // indirect
-	golang.org/x/mod v0.10.0 // indirect
+	golang.org/x/mod v0.12.0 // indirect
 	golang.org/x/oauth2 v0.8.0 // indirect
 	golang.org/x/term v0.10.0 // indirect
 	golang.org/x/text v0.11.0 // indirect
 	golang.org/x/time v0.3.0 // indirect
-	golang.org/x/tools v0.8.0 // indirect
+	golang.org/x/tools v0.11.0 // indirect
 	golang.zx2c4.com/wireguard v0.0.0-20230325221338-052af4a8072b // indirect
 	golang.zx2c4.com/wireguard/wgctrl v0.0.0-20230429144221-925a1e7659e6 // indirect
 	google.golang.org/api v0.108.0 // indirect
 	google.golang.org/appengine v1.6.7 // indirect
-	google.golang.org/genproto v0.0.0-20230526161137-0005af68ea54 // indirect
-	google.golang.org/protobuf v1.30.0 // indirect
+	google.golang.org/genproto v0.0.0-20230720185612-659f7aaaa771 // indirect
+	google.golang.org/protobuf v1.31.0 // indirect
 	gopkg.in/gcfg.v1 v1.2.0 // indirect
 	gopkg.in/inf.v0 v0.9.1 // indirect
 	gopkg.in/ini.v1 v1.67.0 // indirect

go.sum

@@ -57,6 +57,8 @@ cloud.google.com/go/storage v1.10.0/go.mod h1:FLPqc6j+Ki4BU591ie1oL6qBQGu2Bl/tZ9
 cloud.google.com/go/storage v1.22.1/go.mod h1:S8N1cAStu7BOeFfE8KAQzmyyLkK8p/vmRq6kuBTW58Y=
 cloud.google.com/go/storage v1.23.0/go.mod h1:vOEEDNFnciUMhBeT6hsJIn3ieU5cFRmzeLgDvXzfIXc=
 cloud.google.com/go/storage v1.27.0/go.mod h1:x9DOL8TK/ygDUMieqwfhdpQryTeEkhGKMi80i/iqR2s=
+dario.cat/mergo v1.0.0 h1:AGCNq9Evsj31mOgNPcLyXc+4PNABt905YmuqPYYpBWk=
+dario.cat/mergo v1.0.0/go.mod h1:uNxQE+84aUszobStD9th8a29P2fMDhsBdgRYvZOxGmk=
 dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
 github.com/AdaLogics/go-fuzz-headers v0.0.0-20221206110420-d395f97c4830/go.mod h1:VzwV+t+dZ9j/H867F1M2ziD+yLHtB46oM35FxxMJ4d0=
 github.com/AdaLogics/go-fuzz-headers v0.0.0-20230106234847-43070de90fa1/go.mod h1:VzwV+t+dZ9j/H867F1M2ziD+yLHtB46oM35FxxMJ4d0=
@@ -200,8 +202,9 @@ github.com/cncf/xds/go v0.0.0-20211001041855-01bcc9b48dfe/go.mod h1:eXthEFrGJvWH
 github.com/cncf/xds/go v0.0.0-20211011173535-cb28da3451f1/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
 github.com/cockroachdb/datadriven v1.0.2 h1:H9MtNqVoVhvd9nCBwOyDjUEdZCREqbIdCJD93PBm/jA=
 github.com/cockroachdb/datadriven v1.0.2/go.mod h1:a9RdTaap04u637JoCzcUoIcDmvwSUtcUFtT/C3kJlTU=
-github.com/container-orchestrated-devices/container-device-interface v0.5.4 h1:PqQGqJqQttMP5oJ/qNGEg8JttlHqGY3xDbbcKb5T9E8=
 github.com/container-orchestrated-devices/container-device-interface v0.5.4/go.mod h1:DjE95rfPiiSmG7uVXtg0z6MnPm/Lx4wxKCIts0ZE0vg=
+github.com/container-orchestrated-devices/container-device-interface v0.6.0 h1:aWwcz/Ep0Fd7ZuBjQGjU/jdPloM7ydhMW13h85jZNvk=
+github.com/container-orchestrated-devices/container-device-interface v0.6.0/go.mod h1:OQlgtJtDrOxSQ1BWODC8OZK1tzi9W69wek+Jy17ndzo=
 github.com/container-storage-interface/spec v1.7.0 h1:gW8eyFQUZWWrMWa8p1seJ28gwDoN5CVJ4uAbQ+Hdycw=
 github.com/container-storage-interface/spec v1.7.0/go.mod h1:JYuzLqr9VVNoDJl44xp/8fmCOvWPDKzuGTwCoklhuqk=
 github.com/containerd/aufs v1.0.0 h1:2oeJiwX5HstO7shSrPZjrohJZLzK36wvpdmzDRkL/LY=
@@ -629,8 +632,6 @@ github.com/jstemmer/go-junit-report v0.9.1/go.mod h1:Brl9GWCQeLvo8nXZwPNNblvFj/X
 github.com/jtolds/gls v4.20.0+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfVYBRgL+9YlvaHOwJU=
 github.com/julienschmidt/httprouter v1.2.0/go.mod h1:SYymIcj16QtmaHHD7aYtjjsJG7VTCxuUUipMqKk8s4w=
 github.com/julienschmidt/httprouter v1.3.0/go.mod h1:JR6WtHb+2LUe8TCKY3cZOxFyyO8IZAc4RVcycCCAKdM=
-github.com/k3s-io/containerd v1.7.6-k3s1.27 h1:BGoNTvkH/rxURf5UCvE4hIDY2emZ3o1DPNlTAmCoJpI=
-github.com/k3s-io/containerd v1.7.6-k3s1.27/go.mod h1:dWUW/BzVXrFhxzfRZ1Jmr/yLlRvjryZlb1ns2SCHsgs=
 github.com/k3s-io/cri-dockerd v0.3.4-k3s1 h1:eCeVCeXzf10fyanv1gniSwidBjdO83/akv+M72uEnZc=
 github.com/k3s-io/cri-dockerd v0.3.4-k3s1/go.mod h1:0KDOU8lLjp+ETJFFCcVBRQbJ8puRoDxaHBDj8C87Fk4=
 github.com/k3s-io/cri-tools v1.26.0-rc.0-k3s1 h1:yWVy9pS0T1BWBMZBPRy2Q29gaLmaGknQHSnx+HStrVM=
@@ -934,8 +935,8 @@ github.com/opencontainers/image-spec v1.0.2/go.mod h1:BtxoFyWECRxE4U/7sNtV5W15zM
 github.com/opencontainers/image-spec v1.0.3-0.20211202183452-c5a74bcca799/go.mod h1:BtxoFyWECRxE4U/7sNtV5W15zMzWCbyJoFRP3s7yZA0=
 github.com/opencontainers/image-spec v1.1.0-rc2/go.mod h1:3OVijpioIKYWTqjiG0zfF6wvoJ4fAXGbjdZuI2NgsRQ=
 github.com/opencontainers/image-spec v1.1.0-rc2.0.20221005185240-3a7f492d3f1b/go.mod h1:3OVijpioIKYWTqjiG0zfF6wvoJ4fAXGbjdZuI2NgsRQ=
-github.com/opencontainers/image-spec v1.1.0-rc3 h1:fzg1mXZFj8YdPeNkRXMg+zb88BFV0Ys52cJydRwBkb8=
-github.com/opencontainers/image-spec v1.1.0-rc3/go.mod h1:X4pATf0uXsnn3g5aiGIsVnJBR4mxhKzfwmvK/B2NTm8=
+github.com/opencontainers/image-spec v1.1.0-rc4 h1:oOxKUJWnFC4YGHCCMNql1x4YaDfYBTS5Y4x/Cgeo1E0=
+github.com/opencontainers/image-spec v1.1.0-rc4/go.mod h1:X4pATf0uXsnn3g5aiGIsVnJBR4mxhKzfwmvK/B2NTm8=
 github.com/opencontainers/runc v1.1.8 h1:zICRlc+C1XzivLc3nzE+cbJV4LIi8tib6YG0MqC6OqA=
 github.com/opencontainers/runc v1.1.8/go.mod h1:CbUumNnWCuTGFukNXahoo/RFBZvDAgRh/smNYNOhA50=
 github.com/opencontainers/runtime-spec v1.0.3-0.20220909204839-494a5a6aca78 h1:R5M2qXZiK/mWPMT4VldCOiSL9HIAMuxQZWdG0CSM5+4=
@@ -954,10 +955,16 @@ github.com/otiai10/mint v1.3.0/go.mod h1:F5AjcsTsWUqX+Na9fpHb52P8pcRX2CI6A3ctIT9
 github.com/otiai10/mint v1.3.3 h1:7JgpsBaN0uMkyju4tbYHu0mnM55hNKVYLsXmwr15NQI=
 github.com/otiai10/mint v1.3.3/go.mod h1:/yxELlJQ0ufhjUwhshSj+wFjZ78CnZ48/1wtmBH1OTc=
 github.com/pascaldekloe/goe v0.0.0-20180627143212-57f6aae5913c/go.mod h1:lzWF7FIEvWOWxwDKqyGYQf6ZUaNfKdP144TG7ZOy1lc=
+github.com/pdtpartners/containerd v1.0.1-stargz.0.20240214083438-8c533e066c1c h1:OWE2iwUICpISBOLVu9OpelITX4sIZwOabjbF4Vcjm8I=
+github.com/pdtpartners/containerd v1.0.1-stargz.0.20240214083438-8c533e066c1c/go.mod h1:dWUW/BzVXrFhxzfRZ1Jmr/yLlRvjryZlb1ns2SCHsgs=
+github.com/pdtpartners/nix-snapshotter v0.1.2-0.20240214070632-154924c8d48c h1:FdjMmoAD5rdlg2kNIGFLbfwkzV8eO32lDdB6MNAO2BM=
+github.com/pdtpartners/nix-snapshotter v0.1.2-0.20240214070632-154924c8d48c/go.mod h1:iMHTz4uBpoXqj+xq+uCGwBwpe2Or4CqF3R40daLzlqc=
 github.com/pelletier/go-toml v1.2.0/go.mod h1:5z9KED0ma1S8pY6P1sdut58dfprrGBbd/94hg7ilaic=
 github.com/pelletier/go-toml v1.9.3/go.mod h1:u1nR/EPcESfeI/szUZKdtJ0xRNbUoANCkoOuaOx1Y+c=
 github.com/pelletier/go-toml v1.9.5 h1:4yBQzkHv+7BHq2PQUZF3Mx0IYxG7LsP222s7Agd3ve8=
 github.com/pelletier/go-toml v1.9.5/go.mod h1:u1nR/EPcESfeI/szUZKdtJ0xRNbUoANCkoOuaOx1Y+c=
+github.com/pelletier/go-toml/v2 v2.1.0 h1:FnwAJ4oYMvbT/34k9zzHuZNrhlz48GB3/s6at6/MHO4=
+github.com/pelletier/go-toml/v2 v2.1.0/go.mod h1:tJU2Z3ZkXwnxa4DPO899bsyIoywizdUvyaeZurnPPDc=
 github.com/peterbourgon/diskv v2.0.1+incompatible h1:UBdAOUP5p4RWqPBg048CAvpKN+vxiaj6gdUUzhl4XmI=
 github.com/peterbourgon/diskv v2.0.1+incompatible/go.mod h1:uqqh8zWWbv1HBMNONnaR/tNboyR3/BZd58JJSHlUSCU=
 github.com/peterh/liner v0.0.0-20170211195444-bf27d3ba8e1d/go.mod h1:xIteQHvHuaLYG9IFj6mSxM0fCKrs34IrEQUhOYuGPHc=
@@ -1037,8 +1044,8 @@ github.com/rogpeppe/go-internal v1.6.1/go.mod h1:xXDCJY+GAPziupqXw64V24skbSoqbTE
 github.com/rogpeppe/go-internal v1.9.0/go.mod h1:WtVeX8xhTBvf0smdhujwtBcq4Qrzq/fJaraNFVN+nFs=
 github.com/rogpeppe/go-internal v1.11.0 h1:cWPaGQEPrBb5/AsnsZesgZZ9yb1OQ+GOISoDNXVBh4M=
 github.com/rogpeppe/go-internal v1.11.0/go.mod h1:ddIwULY96R17DhadqLgMfk9H9tvdUzkipdSkR5nkCZA=
-github.com/rootless-containers/rootlesskit v1.0.1 h1:jepqW1txFSowKSMAEkVhWH3Oa1TCY9S400MVYe/6Iro=
-github.com/rootless-containers/rootlesskit v1.0.1/go.mod h1:t2UAiYagxrJ+wmpFAUIZPcqsm4k2B7ve6g7lILKbloc=
+github.com/rootless-containers/rootlesskit v1.1.1 h1:F5psKWoWY9/VjZ3ifVcaosjvFZJOagX85U22M0/EQZE=
+github.com/rootless-containers/rootlesskit v1.1.1/go.mod h1:UD5GoA3dqKCJrnvnhVgQQnweMF2qZnf9KLw8EewcMZI=
 github.com/rs/xid v1.5.0 h1:mKX4bl4iPYJtEIxp6CYiUuLQ/8DYMoz0PUdtGgMFRVc=
 github.com/rs/xid v1.5.0/go.mod h1:trrq9SKmegXys3aeAKXMUTdJsYXVwGY3RLcfgqegfbg=
 github.com/rubiojr/go-vhd v0.0.0-20200706105327-02e210299021 h1:if3/24+h9Sq6eDx8UUz1SO9cT9tizyIsATfB7b4D3tc=
@@ -1139,8 +1146,8 @@ github.com/urfave/cli v1.22.4/go.mod h1:Gos4lmkARVdJ6EkW0WaNv/tZAAMe9V7XWyB60NtX
 github.com/urfave/cli v1.22.12/go.mod h1:sSBEIC79qR6OvcmsD4U3KABeOTxDqQtdDnaFuUN30b8=
 github.com/urfave/cli v1.22.14 h1:ebbhrRiGK2i4naQJr+1Xj92HXZCrK7MsyTS/ob3HnAk=
 github.com/urfave/cli v1.22.14/go.mod h1:X0eDS6pD6Exaclxm99NJ3FiCDRED7vIHpx2mDOHLvkA=
-github.com/urfave/cli/v2 v2.23.5 h1:xbrU7tAYviSpqeR3X4nEFWUdB/uDZ6DE+HxmRU7Xtyw=
-github.com/urfave/cli/v2 v2.23.5/go.mod h1:GHupkWPMM0M/sj1a2b4wUrWBPzazNrIjouW6fmdJLxc=
+github.com/urfave/cli/v2 v2.25.7 h1:VAzn5oq403l5pHjc4OhD54+XGO9cdKVL/7lDjF+iKUs=
+github.com/urfave/cli/v2 v2.25.7/go.mod h1:8qnjx1vcq5s2/wpsqoZFndg2CE5tNFyrTvS6SinrnYQ=
 github.com/vbatts/tar-split v0.11.2/go.mod h1:vV3ZuO2yWSVsz+pfFzDG/upWH1JhjOiEaWq6kXyQ3VI=
 github.com/vbatts/tar-split v0.11.5 h1:3bHCTIheBm1qFTcgh9oPu+nNBtX+XJIupG/vacinCts=
 github.com/vbatts/tar-split v0.11.5/go.mod h1:yZbwRsSeGjusneWgA781EKej9HF8vme8okylkAeNKLk=
@@ -1285,8 +1292,9 @@ golang.org/x/mod v0.6.0/go.mod h1:4mET923SAdbXp2ki8ey+zGs1SLqsuM2Y0uvdZR/fUNI=
 golang.org/x/mod v0.7.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
 golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
 golang.org/x/mod v0.9.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
-golang.org/x/mod v0.10.0 h1:lFO9qtOdlre5W1jxS3r/4szv2/6iXxScdzjoBMXNhYk=
 golang.org/x/mod v0.10.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
+golang.org/x/mod v0.12.0 h1:rmsUpXtvNzj340zd98LZ4KntptpfRHwpFOHG188oHXc=
+golang.org/x/mod v0.12.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
 golang.org/x/net v0.8.0 h1:Zrh2ngAOFYneWTAIAPethzeaQLuHwhuBkuV6ZiRnUaQ=
 golang.org/x/net v0.8.0/go.mod h1:QVkue5JL9kW//ek3r6jTKnTFis1tRmNAW2P1shuFdJc=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
@@ -1409,8 +1417,9 @@ golang.org/x/tools v0.2.0/go.mod h1:y4OqIKeOV/fWJetJ8bXPU1sEVniLMIyDAZWeHdV+NTA=
 golang.org/x/tools v0.4.0/go.mod h1:UE5sM2OK9E/d67R0ANs2xJizIymRP5gJU295PvKXxjQ=
 golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU=
 golang.org/x/tools v0.7.0/go.mod h1:4pg6aUX35JBAogB10C9AtvVL+qowtN4pT3CGSQex14s=
-golang.org/x/tools v0.8.0 h1:vSDcovVPld282ceKgDimkRSC8kpaH1dgyc9UMzlt84Y=
 golang.org/x/tools v0.8.0/go.mod h1:JxBZ99ISMI5ViVkT1tr6tdNmXeTrcpVSD3vZ1RsRdN4=
+golang.org/x/tools v0.11.0 h1:EMCa6U9S2LtZXLAMoWiR/R8dAQFRqbAitmbJ2UKhoi8=
+golang.org/x/tools v0.11.0/go.mod h1:anzJrxPjNtfgiYQYirP2CPGzGLxrH2u2QBhn6Bf3qY8=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@@ -1447,8 +1456,9 @@ google.golang.org/protobuf v1.28.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqw
 google.golang.org/protobuf v1.28.1/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
 google.golang.org/protobuf v1.29.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
 google.golang.org/protobuf v1.29.1/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
-google.golang.org/protobuf v1.30.0 h1:kPPoIgf3TsEvrm0PFe15JQ+570QVxYzEvvHqChK+cng=
 google.golang.org/protobuf v1.30.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
+google.golang.org/protobuf v1.31.0 h1:g0LDEJHgrBl9N9r17Ru3sqWhkIx2NB67okBHPwC7hs8=
+google.golang.org/protobuf v1.31.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
 gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
@@ -1492,8 +1502,8 @@ gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gotest.tools/v3 v3.0.2/go.mod h1:3SzNCllyD9/Y+b5r9JIKQ474KzkZyqLqEfYqMsX94Bk=
 gotest.tools/v3 v3.0.3/go.mod h1:Z7Lb0S5l+klDB31fvDQX8ss/FlKDxtlFlw3Oa8Ymbl8=
-gotest.tools/v3 v3.4.0 h1:ZazjZUfuVeZGLAmlKKuyv3IKP5orXcwtOwDQH6YVr6o=
 gotest.tools/v3 v3.4.0/go.mod h1:CtbdzLSsqVhDgMtKsx03ird5YTGB3ar27v0u/yKBW5g=
+gotest.tools/v3 v3.5.0 h1:Ljk6PdHdOhAb5aDMWXjDLMMhph+BpztA4v1QdqEW2eY=
 honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
 honnef.co/go/tools v0.0.1-2020.1.3/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k=

pkg/agent/config/config.go

@@ -546,6 +546,12 @@ func get(ctx context.Context, envInfo *cmds.Agent, proxy proxy.Proxy) (*config.N
 					nodeConfig.Containerd.Root)
 			}
 			nodeConfig.AgentConfig.ImageServiceSocket = "/run/containerd-stargz-grpc/containerd-stargz-grpc.sock"
+		case "nix":
+			if err := containerd.NixSupported(nodeConfig.Containerd.Root); err != nil {
+				return nil, errors.Wrapf(err, "\"nix\" snapshotter cannot be enabled for %q, try using \"overlayfs\" or \"native\"",
+					nodeConfig.Containerd.Root)
+			}
+			nodeConfig.AgentConfig.ImageServiceSocket = "/run/k3s/nix-snapshotter/nix-snapshotter.sock"
 		}
 	}
 	nodeConfig.Containerd.Opt = filepath.Join(envInfo.DataDir, "agent", "containerd")

pkg/agent/containerd/config_linux.go

@@ -18,6 +18,7 @@ import (
 	"github.com/k3s-io/k3s/pkg/daemons/config"
 	"github.com/k3s-io/k3s/pkg/version"
 	"github.com/opencontainers/runc/libcontainer/userns"
+	"github.com/pdtpartners/nix-snapshotter/pkg/nix"
 	"github.com/pkg/errors"
 	"github.com/rancher/wharfie/pkg/registries"
 	"github.com/sirupsen/logrus"
@@ -120,3 +121,7 @@ func FuseoverlayfsSupported(root string) error {
 func StargzSupported(root string) error {
 	return stargz.Supported(root)
 }
+
+func NixSupported(root string) error {
+	return nix.Supported(root)
+}

pkg/agent/containerd/config_windows.go

@@ -85,3 +85,7 @@ func FuseoverlayfsSupported(root string) error {
 func StargzSupported(root string) error {
 	return errors.Wrapf(util3.ErrUnsupportedPlatform, "stargz is not supported")
 }
+
+func NixSupported(root string) error {
+	return errors.Wrapf(util2.ErrUnsupportedPlatform, "nix is not supported")
+}

pkg/agent/templates/templates_linux.go

@@ -35,7 +35,7 @@ version = 2
 {{- if .NodeConfig.AgentConfig.Snapshotter }}
 [plugins."io.containerd.grpc.v1.cri".containerd]
   snapshotter = "{{ .NodeConfig.AgentConfig.Snapshotter }}"
-  disable_snapshot_annotations = {{ if eq .NodeConfig.AgentConfig.Snapshotter "stargz" }}false{{else}}true{{end}}
+  disable_snapshot_annotations = {{ if or (eq .NodeConfig.AgentConfig.Snapshotter "stargz") (eq .NodeConfig.AgentConfig.Snapshotter "nix") }}false{{else}}true{{end}}
 {{ if eq .NodeConfig.AgentConfig.Snapshotter "stargz" }}
 {{ if .NodeConfig.AgentConfig.ImageServiceSocket }}
 [plugins."io.containerd.snapshotter.v1.stargz"]
@@ -74,6 +74,14 @@ enable_keychain = true
 {{end}}
 {{end}}
 {{end}}
+{{ if eq .NodeConfig.AgentConfig.Snapshotter "nix" }}
+[[plugins."io.containerd.transfer.v1.local".unpack_config]]
+platform = "linux/amd64"
+snapshotter = "nix"
+[plugins."io.containerd.snapshotter.v1.nix"]
+address = "{{ .NodeConfig.AgentConfig.ImageServiceSocket }}"
+image_service.enable = true
+{{end}}
 {{end}}
 
 {{- if not .NodeConfig.NoFlannel }}

pkg/containerd/builtins_linux.go

@@ -32,4 +32,5 @@ import (
 	_ "github.com/containerd/fuse-overlayfs-snapshotter/plugin"
 	_ "github.com/containerd/stargz-snapshotter/service/plugin"
 	_ "github.com/containerd/zfs/plugin"
+	_ "github.com/pdtpartners/nix-snapshotter/pkg/plugin"
 )