diff --git a/app/matrix/lib/matrix.libsonnet b/app/matrix/lib/matrix.libsonnet
index 7b10f6f..358b0c9 100644
--- a/app/matrix/lib/matrix.libsonnet
+++ b/app/matrix/lib/matrix.libsonnet
@@ -23,7 +23,7 @@
 #
 # For appservice-irc instances, you can use this oneliner magic to get the
 # registration YAML from logs.
-#    kubectl -n matrix create secret generic appservice-irc-freenode-registration --from-file=registration.yaml=<(kubectl logs -n matrix $(kubectl get pods -n matrix --selector=job-name=appservice-irc-freenode-bootstrap --output=jsonpath='{.items[*].metadata.name}') | tail -n +4 | sed -r 's/(.*aliases:.*)/      group_id: "+freenode:hackerspace.pl"\n\1/')
+#    kubectl -n matrix create secret generic appservice-irc-freenode-registration --from-file=registration.yaml=<(kubectl -n matrix logs job/appservice-irc-freenode-bootstrap | tail -n +4 | sed -r 's/(.*aliases:.*)/      group_id: "+freenode:hackerspace.pl"\n\1/')
 #
 # For appservice-telegram instances, you can use this oneliner magic:
 #    kubectl -n matrix create secret generic appservice-telegram-prod-registration --from-file=registration.yaml=<(kubectl -n matrix logs job/appservice-telegram-prod-bootstrap | grep -A 100 SNIPSNIP | grep -v SNIPSNIP)
@@ -49,6 +49,7 @@
             appserviceIRC: "matrixdotorg/matrix-appservice-irc:release-0.17.1",
             # That's v0.8.2 - we just don't trust that host to not re-tag images.
             appserviceTelegram: "dock.mau.dev/tulir/mautrix-telegram@sha256:9e68eaa80c9e4a75d9a09ec92dc4898b12d48390e01efa4de40ce882a6f7e330",
+            wellKnown: "registry.k0.hswaw.net/q3k/wellknown:1611960794-adbf560851a46ad0e58b42f0daad7ef19535687c",
         },
 
         # Central Authentication Scheme, a single-sign-on system. Note: this flow is now called 'SSO' in Matrix, we keep this name for legacy reasons.
@@ -66,6 +67,8 @@
                 userinfoURL:    error "cas.oauth2.userinfoURL must be set",
             },
         },
+
+        wellKnown: false,
     },
 
     metadata(component):: {
@@ -351,6 +354,37 @@
         target_pod:: app.riotDeployment.spec.template,
     },
 
+    wellKnown: if cfg.wellKnown then {
+        deployment: kube.Deployment("wellknown") {
+            metadata+: app.metadata("wellknown"),
+            spec+: {
+                replicas: 1,
+                template+: {
+                    spec+: {
+                        containers_: {
+                            web: kube.Container("wellknown") {
+                                image: cfg.images.wellKnown,
+                                ports_: {
+                                    http: { containerPort: 8080 },
+                                },
+                                command: ["/app/matrix/wellknown"],
+                                args: ["-hspki_disable", "-domain", cfg.webDomain],
+                            },
+                        },
+                        securityContext: {
+                            runAsUser: 101,
+                            runAsGroup: 101,
+                        },
+                    },
+                },
+            },
+        },
+        svc: kube.Service("wellknown") {
+            metadata+: app.metadata("wellknown"),
+            target_pod:: app.wellKnown.deployment.spec.template,
+        },
+    } else {},
+
     // Any appservice you add here will require an appservice-X-registration
     // secret containing a registration.yaml file. Adding something to this
     // dictionary will cause Synapse to not start until that secret is
@@ -383,6 +417,8 @@
                             { path: "/_matrix", backend: app.synapseSvc.name_port },
                         ] + (if cfg.cas.enable then [
                             { path: "/_cas", backend: app.casSvc.name_port },
+                        ] else []) + (if cfg.wellKnown then [
+                            { path: "/.well-known/matrix", backend: app.wellKnown.svc.name_port },
                         ] else [])
                     },
                 }
diff --git a/app/matrix/matrix.hackerspace.pl.jsonnet b/app/matrix/matrix.hackerspace.pl.jsonnet
index d71dd84..6488fbb 100644
--- a/app/matrix/matrix.hackerspace.pl.jsonnet
+++ b/app/matrix/matrix.hackerspace.pl.jsonnet
@@ -26,8 +26,7 @@
         "irc-freenode": irc.AppServiceIrc("freenode") {
             cfg+: {
                 image: cfg.images.appserviceIRC,
-                // TODO(q3k): move this appservice to waw-hdd-redundant-3
-                storageClassName: "waw-hdd-paranoid-2",
+                storageClassName: "waw-hdd-redundant-3",
                 metadata: app.metadata("appservice-irc-freenode"),
                 // TODO(q3k): add labels to blessed nodes
                 nodeSelector: {
diff --git a/app/matrix/wellknown/BUILD b/app/matrix/wellknown/BUILD
index 1cf4138..b44ac52 100644
--- a/app/matrix/wellknown/BUILD
+++ b/app/matrix/wellknown/BUILD
@@ -1,3 +1,4 @@
+load("@io_bazel_rules_docker//container:container.bzl", "container_image", "container_layer", "container_push")
 load("@io_bazel_rules_go//go:def.bzl", "go_binary", "go_library", "go_test")
 
 go_library(
@@ -23,3 +24,28 @@
     embed = [":go_default_library"],
     deps = ["@com_github_go_test_deep//:go_default_library"],
 )
+
+container_layer(
+    name = "layer_bin",
+    files = [
+        ":wellknown",
+    ],
+    directory = "/app/matrix/",
+)
+
+container_image(
+    name = "runtime",
+    base = "@prodimage-bionic//image",
+    layers = [
+        ":layer_bin",
+    ],
+)
+
+container_push(
+    name = "push",
+    image = ":runtime",
+    format = "Docker",
+    registry = "registry.k0.hswaw.net",
+    repository = "q3k/wellknown",
+    tag = "{BUILD_TIMESTAMP}-{STABLE_GIT_COMMIT}",
+)
diff --git a/app/matrix/wellknown/README.me b/app/matrix/wellknown/README.md
similarity index 100%
rename from app/matrix/wellknown/README.me
rename to app/matrix/wellknown/README.md
diff --git a/bgpwtf/invoice/BUILD.bazel b/bgpwtf/invoice/BUILD.bazel
index 900f0b3..950474e 100644
--- a/bgpwtf/invoice/BUILD.bazel
+++ b/bgpwtf/invoice/BUILD.bazel
@@ -1,4 +1,4 @@
-load("@io_bazel_rules_go//go:def.bzl", "go_binary", "go_library")
+load("@io_bazel_rules_go//go:def.bzl", "go_binary", "go_library", "go_test")
 
 go_library(
     name = "go_default_library",
@@ -31,3 +31,9 @@
     embed = [":go_default_library"],
     visibility = ["//visibility:public"],
 )
+
+go_test(
+    name = "go_default_test",
+    srcs = ["calc_test.go"],
+    embed = [":go_default_library"],
+)
diff --git a/bgpwtf/invoice/calc.go b/bgpwtf/invoice/calc.go
index 9c411da..72933d3 100644
--- a/bgpwtf/invoice/calc.go
+++ b/bgpwtf/invoice/calc.go
@@ -1,17 +1,23 @@
 package main
 
 import (
+	"sort"
 	"time"
 
 	pb "code.hackerspace.pl/hscloud/bgpwtf/invoice/proto"
 )
 
+// calculateInvoiceData applies all business logic to populate an Invoice's
+// denormalized fields from its InvoiceData.
 func calculateInvoiceData(p *pb.Invoice) {
+	// Populate default unit.
+	// TODO(q3k): this really should be done on invoice submit instead.
 	p.Unit = p.Data.Unit
 	if p.Unit == "" {
 		p.Unit = "€"
 	}
 
+	// Calculate totals.
 	p.TotalNet = 0
 	p.Total = 0
 	for _, i := range p.Data.Item {
@@ -24,6 +30,21 @@
 		i.Total = rowTotal
 	}
 
+	// Calculate due date.
 	due := int64(time.Hour*24) * p.Data.DaysDue
 	p.DueDate = time.Unix(0, p.Date).Add(time.Duration(due)).UnixNano()
+
+	// Denormalize Items' GTUCodes into the Invoice's summary GTU codes.
+	codeSet := make(map[pb.GTUCode]bool)
+	for _, item := range p.Data.Item {
+		for _, code := range item.GtuCode {
+			codeSet[code] = true
+		}
+	}
+	var codes []pb.GTUCode
+	for c, _ := range codeSet {
+		codes = append(codes, c)
+	}
+	sort.Slice(codes, func(i, j int) bool { return codes[i] < codes[j] })
+	p.GtuCode = codes
 }
diff --git a/bgpwtf/invoice/calc_test.go b/bgpwtf/invoice/calc_test.go
new file mode 100644
index 0000000..e8607c9
--- /dev/null
+++ b/bgpwtf/invoice/calc_test.go
@@ -0,0 +1,129 @@
+package main
+
+import (
+	"testing"
+	"time"
+
+	pb "code.hackerspace.pl/hscloud/bgpwtf/invoice/proto"
+)
+
+// Fake test data for test in this file.
+var (
+	itemInternet1 = &pb.Item{
+		Title:     "Dostęp do Internetu - Umowa FOOBAR/10 - Opłata Abonentowa 2020/08",
+		Count:     1,
+		UnitPrice: 4200,
+		Vat:       23000,
+	}
+	itemInternet2 = &pb.Item{
+		Title:     "Dostęp do Internetu - Umowa FOOBAR/10 - Opłata Abonentowa 2020/09",
+		Count:     1,
+		UnitPrice: 4200,
+		Vat:       23000,
+	}
+	itemHardware = &pb.Item{
+		Title:     "Thinkpad x230, i7, 16GB RAM, Refurbished",
+		Count:     1,
+		UnitPrice: 10000,
+		Vat:       23000,
+		GtuCode:   []pb.GTUCode{pb.GTUCode_GTU_05},
+	}
+	billing1 = []string{
+		"Wykop Sp. z o. o.",
+		"Zakręt 8",
+		"60-351 Poznań",
+	}
+	billing2 = []string{
+		"TEH Adam Karolczak",
+		"Zgoda 18/2",
+		"95-200 Pabianice",
+	}
+	vatID1 = "PL8086133742"
+	vatID2 = "DE133742429"
+	iban   = "PL 59 1090 2402 9746 7956 2256 2375"
+	swift  = "WLPPZLPAXXX"
+)
+
+func TestCalculate(t *testing.T) {
+	now := time.Now()
+	for _, te := range []struct {
+		description string
+		data        *pb.InvoiceData
+		want        *pb.Invoice
+	}{
+		{
+			description: "Invoice without JPK_V7 codes",
+			data: &pb.InvoiceData{
+				Item:            []*pb.Item{itemInternet1, itemInternet2},
+				InvoicerBilling: billing1,
+				CustomerBilling: billing2,
+				InvoicerVatId:   vatID1,
+				CustomerVatId:   vatID2,
+				Date:            now.UnixNano(),
+				DaysDue:         21,
+				Iban:            iban,
+				Swift:           swift,
+				Unit:            "PLN",
+			},
+			want: &pb.Invoice{
+				TotalNet: 8400,
+				Total:    10332,
+				Unit:     "PLN",
+			},
+		},
+		{
+			description: "Invoice with JPK_V7 codes",
+			data: &pb.InvoiceData{
+				// Repeated item with GTU code GTU_5, to ensure result doesn't
+				// have repeated codes.
+				Item:            []*pb.Item{itemInternet1, itemHardware, itemHardware},
+				InvoicerBilling: billing1,
+				CustomerBilling: billing2,
+				InvoicerVatId:   vatID1,
+				CustomerVatId:   vatID2,
+				Date:            now.UnixNano(),
+				DaysDue:         21,
+				Iban:            iban,
+				Swift:           swift,
+				Unit:            "PLN",
+			},
+			want: &pb.Invoice{
+				TotalNet: 24200,
+				Total:    29766,
+				Unit:     "PLN",
+				GtuCode:  []pb.GTUCode{pb.GTUCode_GTU_05},
+			},
+		},
+	} {
+		t.Run(te.description, func(t *testing.T) {
+			invoice := &pb.Invoice{
+				Data: te.data,
+				Date: te.data.Date,
+			}
+			calculateInvoiceData(invoice)
+			if want, got := te.want.TotalNet, invoice.TotalNet; want != got {
+				t.Errorf("got TotalNet %d, wanted %d", got, want)
+			}
+			if want, got := te.want.Total, invoice.Total; want != got {
+				t.Errorf("got Total %d, wanted %d", got, want)
+			}
+			if want, got := te.want.Unit, invoice.Unit; want != got {
+				t.Errorf("got Unit %q, wanted %q", got, want)
+			}
+			due := time.Duration(int64(time.Hour*24) * te.data.DaysDue)
+			if want, got := now.Add(due).UnixNano(), invoice.DueDate; want != got {
+				t.Errorf("got DueDate %d, wanted %d", got, want)
+			}
+			if want, got := len(te.want.GtuCode), len(invoice.GtuCode); want != got {
+				t.Errorf("got %d GTU codes, wanted %d", got, want)
+			} else {
+				for i, want := range te.want.GtuCode {
+					got := invoice.GtuCode[i]
+					if want != got {
+						t.Errorf("GTU code %d: wanted %s, got %s", i, want.String(), got.String())
+					}
+				}
+			}
+		})
+	}
+}
diff --git a/bgpwtf/invoice/main.go b/bgpwtf/invoice/main.go
index 5133010..ae17dbb 100644
--- a/bgpwtf/invoice/main.go
+++ b/bgpwtf/invoice/main.go
@@ -130,6 +130,10 @@
 	return &pb.SealInvoiceResponse{}, nil
 }
 
+func (s *service) GetInvoices(req *pb.GetInvoicesRequest, srv pb.Invoicer_GetInvoicesServer) error {
+	return status.Error(codes.Unimplemented, "unimplemented")
+}
+
 func init() {
 	flag.Set("logtostderr", "true")
 }
diff --git a/bgpwtf/invoice/model.go b/bgpwtf/invoice/model.go
index fcf4aba..548d8ff 100644
--- a/bgpwtf/invoice/model.go
+++ b/bgpwtf/invoice/model.go
@@ -75,7 +75,7 @@
 			invoice_id, final_uid, sealed_time
 		) values (
 			?,
-			( select printf("%04d", ifnull( (select final_uid as v from invoice_seal order by final_uid desc limit 1), 20000) + 1 )),
+			( select printf("%04d", ifnull( (select final_uid as v from invoice_seal order by final_uid desc limit 1), 21000) + 1 )),
 			?
 		)
 	`
diff --git a/bgpwtf/invoice/proto/BUILD.bazel b/bgpwtf/invoice/proto/BUILD.bazel
index 51f85fe..2eeae64 100644
--- a/bgpwtf/invoice/proto/BUILD.bazel
+++ b/bgpwtf/invoice/proto/BUILD.bazel
@@ -1,3 +1,4 @@
+load("@rules_proto//proto:defs.bzl", "proto_library")
 load("@io_bazel_rules_go//go:def.bzl", "go_library")
 load("@io_bazel_rules_go//proto:def.bzl", "go_proto_library")
 
diff --git a/bgpwtf/invoice/proto/invoice.proto b/bgpwtf/invoice/proto/invoice.proto
index ee2b9d8..70e6923 100644
--- a/bgpwtf/invoice/proto/invoice.proto
+++ b/bgpwtf/invoice/proto/invoice.proto
@@ -264,12 +264,12 @@
     // If sealed, otherwise 'proforma'.
     string final_uid = 3;
     int64 date = 4;
-    int64 due_date = 5;
     // Denormalized fields follow.
+    int64 due_date = 5;
     uint64 total_net = 6;
     uint64 total = 7;
     string unit = 8;
-    repeated GTUCode gtu_codes = 10;
+    repeated GTUCode gtu_code = 10;
     // Next tag: 11;
 }
 
@@ -312,9 +312,48 @@
 message SealInvoiceResponse {
 }
 
+message GetInvoicesRequest {
+    // Return all invoices issued in a given year.
+    message ForYear {
+        int32 year = 1;
+    }
+    // Return all invoices issued in a given month of a year.
+    message ForMonth {
+        int32 year = 1;
+        int32 month = 2;
+    }
+
+    oneof range {
+        ForYear for_year = 1;
+        ForMonth for_month = 2;
+    }
+}
+
+message GetInvoicesResponse {
+    // Each chunk may contain an arbitrary amount of invoices, and each
+    // GetInvoices request may return an arbitrary amount of
+    // GetInvoicesResponses in a stream.
+    repeated Invoice invoice = 1;
+}
+
 service Invoicer {
+    // Create an invoice with given data, returning UID. The newly created
+    // invoice is created as a proforma invoice and not yet sealed, ie. not
+    // given a unique, sequential ID.
     rpc CreateInvoice(CreateInvoiceRequest) returns (CreateInvoiceResponse);
+
+    // Get invoice details for a given UID.
     rpc GetInvoice(GetInvoiceRequest) returns (GetInvoiceResponse);
+
+    // Return chunks of a rendered PDF for a given UID. If the invoice is
+    // sealed, the stored PDF will be returned, otherwise a PDF will be
+    // rendered on the fly.
     rpc RenderInvoice(RenderInvoiceRequest) returns (stream RenderInvoiceResponse);
+
+    // Seal invoice, ie. assign it a sequential ID and render it to an
+    // immutable PDF for audit purposes.
     rpc SealInvoice(SealInvoiceRequest) returns (SealInvoiceResponse);
+
+    // Return a summarized detail of invoice data for a given filter.
+    rpc GetInvoices(GetInvoicesRequest) returns (stream GetInvoicesResponse);
 }
diff --git a/bgpwtf/machines/secrets/cipher/edge01.waw.bgp.wtf-private.nix b/bgpwtf/machines/secrets/cipher/edge01.waw.bgp.wtf-private.nix
index f97f1eb..aea2b80 100644
--- a/bgpwtf/machines/secrets/cipher/edge01.waw.bgp.wtf-private.nix
+++ b/bgpwtf/machines/secrets/cipher/edge01.waw.bgp.wtf-private.nix
@@ -1,50 +1,51 @@
 -----BEGIN PGP MESSAGE-----
 
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 -----END PGP MESSAGE-----
diff --git a/cluster/kube/k0-cockroach.jsonnet b/cluster/kube/k0-cockroach.jsonnet
new file mode 100644
index 0000000..faf0f14
--- /dev/null
+++ b/cluster/kube/k0-cockroach.jsonnet
@@ -0,0 +1,7 @@
+// Only the CockroachDB cluster - nodes, clients etc.
+
+local k0 = (import "k0.libsonnet").k0;
+
+{
+    cockroach: k0.cockroach,
+}
diff --git a/cluster/kube/k0.libsonnet b/cluster/kube/k0.libsonnet
index ad6b735..44f83d0 100644
--- a/cluster/kube/k0.libsonnet
+++ b/cluster/kube/k0.libsonnet
@@ -65,7 +65,7 @@
                     topology: [
                         { name: "bc01n01", node: "bc01n01.hswaw.net" },
                         { name: "bc01n02", node: "bc01n02.hswaw.net" },
-                        { name: "bc01n03", node: "bc01n03.hswaw.net" },
+                        { name: "dcr01s22", node: "dcr01s22.hswaw.net" },
                     ],
                     // Host path on SSD.
                     hostPath: "/var/db/crdb-waw1",
@@ -80,112 +80,19 @@
                 buglessDev: k0.cockroach.waw2.Client("bugless-dev"),
                 sso: k0.cockroach.waw2.Client("sso"),
                 herpDev: k0.cockroach.waw2.Client("herp-dev"),
+                gitea: k0.cockroach.waw2.Client("gitea"),
             },
         },
 
         ceph: {
             // waw1 cluster - dead as of 2019/08/06, data corruption
-            // waw2 cluster: shitty 7200RPM 2.5" HDDs
-            waw2: rook.Cluster(k0.cluster.rook, "ceph-waw2") {
-                spec: {
-                    mon: {
-                        count: 3,
-                        allowMultiplePerNode: false,
-                    },
-                    storage: {
-                        useAllNodes: false,
-                        useAllDevices: false,
-                        config: {
-                            databaseSizeMB: "1024",
-                            journalSizeMB: "1024",
-                        },
-                        nodes: [
-                            {
-                                name: "bc01n01.hswaw.net",
-                                location: "rack=dcr01 chassis=bc01 host=bc01n01",
-                                devices: [ { name: "sda" } ],
-                            },
-                            {
-                                name: "bc01n02.hswaw.net",
-                                location: "rack=dcr01 chassis=bc01 host=bc01n02",
-                                devices: [ { name: "sda" } ],
-                            },
-                            {
-                                name: "bc01n03.hswaw.net",
-                                location: "rack=dcr01 chassis=bc01 host=bc01n03",
-                                devices: [ { name: "sda" } ],
-                            },
-                        ],
-                    },
-                    benji:: {
-                        metadataStorageClass: "waw-hdd-paranoid-2",
-                        encryptionPassword: std.split((importstr "../secrets/plain/k0-benji-encryption-password"), '\n')[0],
-                        pools: [
-                            "waw-hdd-redundant-2",
-                            "waw-hdd-redundant-2-metadata",
-                            "waw-hdd-paranoid-2",
-                            "waw-hdd-yolo-2",
-                        ],
-                        s3Configuration: {
-                            awsAccessKeyId: "RPYZIROFXNLQVU2WJ4R3",
-                            awsSecretAccessKey: std.split((importstr "../secrets/plain/k0-benji-secret-access-key"), '\n')[0],
-                            bucketName: "benji-k0-backups",
-                            endpointUrl: "https://s3.eu-central-1.wasabisys.com/",
-                        },
-                    }
-                },
-            },
-            waw2Pools: {
-                // redundant block storage
-                blockRedundant: rook.ECBlockPool(k0.ceph.waw2, "waw-hdd-redundant-2") {
-                    spec: {
-                        failureDomain: "host",
-                        erasureCoded: {
-                            dataChunks: 2,
-                            codingChunks: 1,
-                        },
-                    },
-                },
-                // paranoid block storage (3 replicas)
-                blockParanoid: rook.ReplicatedBlockPool(k0.ceph.waw2, "waw-hdd-paranoid-2") {
-                    spec: {
-                        failureDomain: "host",
-                        replicated: {
-                            size: 3,
-                        },
-                    },
-                },
-                // yolo block storage (no replicas!)
-                blockYolo: rook.ReplicatedBlockPool(k0.ceph.waw2, "waw-hdd-yolo-2") {
-                    spec: {
-                        failureDomain: "host",
-                        replicated: {
-                            size: 1,
-                        },
-                    },
-                },
-                objectRedundant: rook.S3ObjectStore(k0.ceph.waw2, "waw-hdd-redundant-2-object") {
-                    spec: {
-                        metadataPool: {
-                            failureDomain: "host",
-                            replicated: { size: 3 },
-                        },
-                        dataPool: {
-                            failureDomain: "host",
-                            erasureCoded: {
-                                dataChunks: 2,
-                                codingChunks: 1,
-                            },
-                        },
-                    },
-                },
-            },
+            // waw2 cluster - dead as of 2021/01/22, torn down (horrible M610 RAID controllers are horrible)
 
             // waw3: 6TB SAS 3.5" HDDs
             waw3: rook.Cluster(k0.cluster.rook, "ceph-waw3") {
                 spec: {
                     mon: {
-                        count: 3,
+                        count: 1,
                         allowMultiplePerNode: false,
                     },
                     storage: {
@@ -267,8 +174,8 @@
                     spec: {
                         failureDomain: "osd",
                         erasureCoded: {
-                            dataChunks: 12,
-                            codingChunks: 4,
+                            dataChunks: 2,
+                            codingChunks: 1,
                         },
                     },
                 },
@@ -383,7 +290,6 @@
         # bits they use, whatever those might be.
         # TODO(q3k): fix this?
         unnecessarilyInsecureNamespaces: [
-            policies.AllowNamespaceInsecure("ceph-waw2"),
             policies.AllowNamespaceInsecure("ceph-waw3"),
             policies.AllowNamespaceInsecure("matrix"),
             policies.AllowNamespaceInsecure("registry"),
diff --git a/cluster/kube/lib/cockroachdb.libsonnet b/cluster/kube/lib/cockroachdb.libsonnet
index 8ebad52..9f206f0 100644
--- a/cluster/kube/lib/cockroachdb.libsonnet
+++ b/cluster/kube/lib/cockroachdb.libsonnet
@@ -42,7 +42,7 @@
         local cluster = self,
 
         cfg:: {
-            image: "cockroachdb/cockroach:v19.1.0",
+            image: "cockroachdb/cockroach:v20.2.4",
 
             # Must be unique per cluster.
             portServe: 26257,
diff --git a/cluster/kube/lib/rook.libsonnet b/cluster/kube/lib/rook.libsonnet
index 8f83d2d..c8e38a8 100644
--- a/cluster/kube/lib/rook.libsonnet
+++ b/cluster/kube/lib/rook.libsonnet
@@ -10,7 +10,7 @@
         local env = self,
         local cfg = env.cfg,
         cfg:: {
-            image: "rook/ceph:v1.1.9",
+            image: "rook/ceph:v1.2.7",
             namespace: "rook-ceph-system",
         },
 
@@ -54,6 +54,7 @@
                             },
                             dataDirHostPath: oa.String { pattern: "^/(\\S+)" },
                             skipUpgradeChecks: oa.Boolean,
+                            continueUpgradeAfterChecksEvenIfNotHealthy: oa.Boolean,
                             mon: oa.Dict {
                                 allowMultiplePerNode: oa.Boolean,
                                 count: oa.Integer { minimum: 0, maximum: 9 },
@@ -236,6 +237,15 @@
                     subresources: { status: {} },
                 },
             },
+            cephclients: kube.CustomResourceDefinition("ceph.rook.io", "v1", "CephClient") {
+                spec+: {
+                    validation: oa.Validation(oa.Dict {
+                        spec: oa.Dict {
+                            caps: oa.Any,
+                        },
+                    }),
+                },
+            },
         },
 
         sa: {
@@ -307,9 +317,24 @@
                     },
                     {
                         apiGroups: ["policy", "apps"],
-                        resources: ["poddisruptionbudgets", "deployments"],
+                        resources: ["poddisruptionbudgets", "deployments", "replicasets"],
                         verbs: ["*"],
                     },
+                    {
+                        apiGroups: ["healthchecking.openshift.io"],
+                        resources: ["machinedisruptionbudgets"],
+                        verbs: ["get", "list", "watch", "create", "update", "delete"],
+                    },
+                    {
+                        apiGroups: ["machine.openshift.io"],
+                        resources: ["machines"],
+                        verbs: ["get", "list", "watch", "create", "update", "delete"],
+                    },
+                    {
+                        apiGroups: ["storage.k8s.io"],
+                        resources: ["csidrivers"],
+                        verbs: ["create"],
+                    },
                 ],
             },
 
@@ -733,7 +758,17 @@
                         apiGroups: [""],
                         resources: ["configmaps"],
                         verbs: ["get", "list", "watch", "create", "update", "delete"],
-                    }
+                    },
+                ],
+            },
+            osdCluster: kube.ClusterRole(cluster.name("osd-cluster")) {
+                metadata+: cluster.metadata { namespace:: null },
+                rules: [
+                    {
+                        apiGroups: [""],
+                        resources: ["nodes"],
+                        verbs: ["get", "list"],
+                    },
                 ],
             },
             mgr: kube.Role(cluster.name("mgr")) {
@@ -802,13 +837,21 @@
             subjects_: [cluster.sa.mgr],
         },
 
+        osdClusterRB: kube.ClusterRoleBinding(cluster.name("osd-cluster")) {
+            metadata+: {
+                namespace:: null,
+            },
+            roleRef_: cluster.roles.osdCluster,
+            subjects_: [cluster.sa.osd],
+        },
+
+
         cluster: kube._Object("ceph.rook.io/v1", "CephCluster", name) {
             metadata+: cluster.metadata,
             spec: {
                 cephVersion: {
                     # https://github.com/rook/rook/issues/2945#issuecomment-483964014
-                    #image: "ceph/ceph:v13.2.5-20190319",
-                    image: "ceph/ceph:v14.2.2-20190830",
+                    image: "ceph/ceph:v14.2.16",
                     allowUnsupported: true,
                 },
                 dataDirHostPath: if name == "ceph-waw2" then "/var/lib/rook" else "/var/lib/rook-%s" % [name],
diff --git a/cluster/nix/defs-machines.nix b/cluster/nix/defs-machines.nix
index 4c50f67..da9150c 100644
--- a/cluster/nix/defs-machines.nix
+++ b/cluster/nix/defs-machines.nix
@@ -25,19 +25,10 @@
     mgmtIf = "eno1";
     stateVersion = "18.09";
   }
-  rec {
-    name = "bc01n03";
-    threads = 16;
-    fqdn = "${name}.hswaw.net";
-    ipAddr = "185.236.240.37";
-    ipAddrBits = 28;
-    gw = "185.236.240.33";
-    podNet = "10.10.18.0/24";
-    diskBoot = "/dev/disk/by-id/scsi-360024e8078a8fa0023b1787e0605a3e0";
-    fsRoot = "/dev/disk/by-uuid/afc05836-c9b3-4d7e-b0a2-3ebfe2336d4f";
-    mgmtIf = "eno1";
-    stateVersion = "18.09";
-  }
+  # Tombstone - bc01n03 suffered from hardware failure on 2021/01/10.
+  # rec {
+  #   name = "bc01n03";
+  # }
   rec {
     name = "dcr01s22";
     threads = 48;
diff --git a/devtools/gerrit/kube/prod.jsonnet b/devtools/gerrit/kube/prod.jsonnet
index 68f68cc..5f47210 100644
--- a/devtools/gerrit/kube/prod.jsonnet
+++ b/devtools/gerrit/kube/prod.jsonnet
@@ -11,7 +11,7 @@
             domain: "gerrit.hackerspace.pl",
             identity: "7b6244cf-e30b-42c5-ba91-c329ef4e6cf1",
 
-            storageClassName: "waw-hdd-paranoid-2",
+            storageClassName: "waw-hdd-redundant-3",
 
             secureSecret: "gerrit",
         },
diff --git a/devtools/kube/depotview.libsonnet b/devtools/kube/depotview.libsonnet
index 019542c..f82ff84 100644
--- a/devtools/kube/depotview.libsonnet
+++ b/devtools/kube/depotview.libsonnet
@@ -10,7 +10,12 @@
         local depotview = self,
         cfg+: {
             image: cfg.image,
-            container: depotview.GoContainer("main", "/devtools/depotview") {}
+            container: depotview.GoContainer("main", "/devtools/depotview") {
+                resources: {
+                    requests: { cpu: "25m", memory: "256Mi" },
+                    limits: { cpu: "500m", memory: "512Mi" },
+                },
+            }
         },
     }
 }
diff --git a/kube/postgres.libsonnet b/kube/postgres.libsonnet
index e89e9db..a80c236 100644
--- a/kube/postgres.libsonnet
+++ b/kube/postgres.libsonnet
@@ -18,6 +18,12 @@
         password: error "password must be set",
 
         storageSize: "30Gi",
+
+        # This option can be used to customize initial database creation. For
+        # available options see: https://www.postgresql.org/docs/9.5/app-initdb.html
+        # Changing this option in already existing deployments will not affect
+        # existing database.
+        initdbArgs: null,
     },
 
     makeName(suffix):: cfg.prefix + suffix,
@@ -63,7 +69,9 @@
                                 POSTGRES_USER: cfg.username,
                                 POSTGRES_PASSWORD: cfg.password,
                                 PGDATA: "/var/lib/postgresql/data/pgdata",
-                            },
+                            } + if cfg.initdbArgs != null then {
+                                POSTGRES_INITDB_ARGS: cfg.initdbArgs,
+                            } else {},
                             volumeMounts_: {
                                 data: { mountPath: "/var/lib/postgresql/data" },
                             },