1758 Commits (4fa40a18e9620b8686679f7267836eff81afb71c)

Author	SHA1	Message	Date
Brad Fitzpatrick	4fa40a18e9	net/netns, net/dns/resolver, etc: make netmon required in most places ... The goal is to move more network state accessors to netmon.Monitor where they can be cheaper/cached. But first (this change and others) we need to make sure the one netmon.Monitor is plumbed everywhere. Some notable bits: * tsdial.NewDialer is added, taking a now-required netmon * because a tsdial.Dialer always has a netmon, anything taking both a Dialer and a NetMon is now redundant; take only the Dialer and get the NetMon from that if/when needed. * netmon.NewStatic is added, primarily for tests Updates tailscale/corp#10910 Updates tailscale/corp#18960 Updates #7967 Updates #3299 Change-Id: I877f9cb87618c4eb037cee098241d18da9c01691 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	6 months ago
Brad Fitzpatrick	7a62dddeac	net/netcheck, wgengine/magicsock: make netmon.Monitor required ... This has been a TODO for ages. Time to do it. The goal is to move more network state accessors to netmon.Monitor where they can be cheaper/cached. Updates tailscale/corp#10910 Updates tailscale/corp#18960 Updates #7967 Updates #3299 Change-Id: I60fc6508cd2d8d079260bda371fc08b6318bcaf1 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	6 months ago
Brad Fitzpatrick	745931415c	health, all: remove health.Global, finish plumbing health.Tracker ... Updates #11874 Updates #4136 Change-Id: I414470f71d90be9889d44c3afd53956d9f26cd61 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	6 months ago
Brad Fitzpatrick	6d69fc137f	ipn/{ipnlocal,localapi},wgengine{,/magicsock}: plumb health.Tracker ... Down to 25 health.Global users. After this remains controlclient & net/dns & wgengine/router. Updates #11874 Updates #4136 Change-Id: I6dd1856e3d9bf523bdd44b60fb3b8f7501d5dc0d Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	6 months ago
Irbe Krumina	df8f40905b	cmd/k8s-operator,k8s-operator: optionally serve tailscaled metrics on Pod IP (#11699) ... Adds a new .spec.metrics field to ProxyClass to allow users to optionally serve client metrics (tailscaled --debug) on <Pod-IP>:9001. Metrics cannot currently be enabled for proxies that egress traffic to tailnet and for Ingress proxies with tailscale.com/experimental-forward-cluster-traffic-via-ingress annotation (because they currently forward all cluster traffic to their respective backends). The assumption is that users will want to have these metrics enabled continuously to be able to monitor proxy behaviour (as opposed to enabling them temporarily for debugging). Hence we expose them on Pod IP to make it easier to consume them i.e via Prometheus PodMonitor. Updates tailscale/tailscale#11292 Signed-off-by: Irbe Krumina <irbe@tailscale.com>	6 months ago
Brad Fitzpatrick	723c775dbb	tsd, ipnlocal, etc: add tsd.System.HealthTracker, start some plumbing ... This adds a health.Tracker to tsd.System, accessible via a new tsd.System.HealthTracker method. In the future, that new method will return a tsd.System-specific HealthTracker, so multiple tsnet.Servers in the same process are isolated. For now, though, it just always returns the temporary health.Global value. That permits incremental plumbing over a number of changes. When the second to last health.Global reference is gone, then the tsd.System.HealthTracker implementation can return a private Tracker. The primary plumbing this does is adding it to LocalBackend and its dozen and change health calls. A few misc other callers are also plumbed. Subsequent changes will flesh out other parts of the tree (magicsock, controlclient, etc). Updates #11874 Updates #4136 Change-Id: Id51e73cfc8a39110425b6dc19d18b3975eac75ce Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	6 months ago
Lee Briggs	14ac41febc	cmd/k8s-operator,k8s-operator: proxyclass affinity (#11862) ... add ability to set affinity rules to proxyclass Updates#11861 Signed-off-by: Lee Briggs <lee@leebriggs.co.uk>	6 months ago
Irbe Krumina	3af0f526b8	cmd{containerboot,k8s-operator},util/linuxfw: support ExternalName Services (#11802) ... * cmd/containerboot,util/linuxfw: support proxy backends specified by DNS name Adds support for optionally configuring containerboot to proxy traffic to backends configured by passing TS_EXPERIMENTAL_DEST_DNS_NAME env var to containerboot. Containerboot will periodically (every 10 minutes) attempt to resolve the DNS name and ensure that all traffic sent to the node's tailnet IP gets forwarded to the resolved backend IP addresses. Currently: - if the firewall mode is iptables, traffic will be load balanced accross the backend IP addresses using round robin. There are no health checks for whether the IPs are reachable. - if the firewall mode is nftables traffic will only be forwarded to the first IP address in the list. This is to be improved. * cmd/k8s-operator: support ExternalName Services Adds support for exposing endpoints, accessible from within a cluster to the tailnet via DNS names using ExternalName Services. This can be done by annotating the ExternalName Service with tailscale.com/expose: "true" annotation. The operator will deploy a proxy configured to route tailnet traffic to the backend IPs that service.spec.externalName resolves to. The backend IPs must be reachable from the operator's namespace. Updates tailscale/tailscale#10606 Signed-off-by: Irbe Krumina <irbe@tailscale.com>	6 months ago
Joe Tsai	63b3c82587	ipn/local: log OS-specific diagnostic information as JSON (#11700) ... There is an undocumented 16KiB limit for text log messages. However, the limit for JSON messages is 256KiB. Even worse, logging JSON as text results in significant overhead since each double quote needs to be escaped. Instead, use logger.Logf.JSON to explicitly log the info as JSON. We also modify osdiag to return the information as structured data rather than implicitly have the package log on our behalf. This gives more control to the caller on how to log. Updates #7802 Signed-off-by: Joe Tsai <joetsai@digital-static.net>	6 months ago
Sonia Appasamy	0a84215036	release/dist/qnap: add qnap target builder ... Creates new QNAP builder target, which builds go binaries then uses docker to build into QNAP packages. Much of the docker/script code here is pulled over from https://github.com/tailscale/tailscale-qpkg, with adaptation into our builder structures. The qnap/Tailscale folder contains static resources needed to build Tailscale qpkg packages, and is an exact copy of the existing folder in the tailscale-qpkg repo. Builds can be run with: ``` sudo ./tool/go run ./cmd/dist build qnap ``` Updates tailscale/tailscale-qpkg#135 Signed-off-by: Sonia Appasamy <sonia@tailscale.com>	6 months ago
Irbe Krumina	bbe194c80d	cmd/k8s-operator: correctly determine cluster domain (#11512) ... Kubernetes cluster domain defaults to 'cluster.local', but can also be customized. We need to determine cluster domain to set up in-cluster forwarding to our egress proxies. This was previously hardcoded to 'cluster.local', so was the egress proxies were not usable in clusters with custom domains. This PR ensures that we attempt to determine the cluster domain by parsing /etc/resolv.conf. In case the cluster domain cannot be determined from /etc/resolv.conf, we fall back to 'cluster.local'. Updates tailscale/tailscale#10399,tailscale/tailscale#11445 Signed-off-by: Irbe Krumina <irbe@tailscale.com>	7 months ago
Aaron Klotz	7132b782d4	hostinfo: use Distro field for distinguishing Windows Server builds ... Some editions of Windows server share the same build number as their client counterpart; we must use an additional field found in the OS version information to distinguish between them. Even though "Distro" has Linux connotations, it is the most appropriate hostinfo field. What is Windows Server if not an alternate distribution of Windows? This PR populates Distro with "Server" when applicable. Fixes #11785 Signed-off-by: Aaron Klotz <aaron@tailscale.com>	7 months ago
Percy Wegmann	02c6af2a69	cmd/tailscale: clarify Taildrive grants in help text ... Fixes #cleanup Signed-off-by: Percy Wegmann <percy@tailscale.com>	7 months ago
Paul Scott	82394debb7	cmd/tailscale: add shell tab-completion ... The approach is lifted from cobra: `tailscale completion bash` emits a bash script for configuring the shell's autocomplete: . <( tailscale completion bash ) so that typing: tailscale st<TAB> invokes: tailscale completion __complete -- st RELNOTE=tailscale CLI now supports shell tab-completion Fixes #3793 Signed-off-by: Paul Scott <paul@tailscale.com>	7 months ago
dependabot[bot]	449be38e03	build(deps): bump google.golang.org/protobuf from 1.32.0 to 1.33.0 (#11410) ... * build(deps): bump google.golang.org/protobuf from 1.32.0 to 1.33.0 Bumps google.golang.org/protobuf from 1.32.0 to 1.33.0. --- updated-dependencies: - dependency-name: google.golang.org/protobuf dependency-type: indirect ... Signed-off-by: dependabot[bot] <support@github.com> * cmd/{derper,stund}: update depaware.txt Signed-off-by: Andrew Lytvynov <awly@tailscale.com> --------- Signed-off-by: dependabot[bot] <support@github.com> Signed-off-by: Andrew Lytvynov <awly@tailscale.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> Co-authored-by: Andrew Lytvynov <awly@tailscale.com>	7 months ago
Paul Scott	454a03a766	cmd/tailscale/cli: prepend "tailscale" to usage errors ... Updates #11626 Signed-off-by: Paul Scott <paul@tailscale.com>	7 months ago
Paul Scott	d07ede461a	cmd/tailscale/cli: fix "subcommand required" errors when typod ... Fixes #11672 Signed-off-by: Paul Scott <paul@tailscale.com>	7 months ago
Paul Scott	3ff3445e9d	cmd/tailscale/cli: improve ShortHelp/ShortUsage unit test, fix new errors ... Updates #11364 Signed-off-by: Paul Scott <paul@tailscale.com>	7 months ago
Paul Scott	eb34b8a173	cmd/tailscale/cli: remove explicit usageFunc - its default ... Updates #cleanup Signed-off-by: Paul Scott <paul@tailscale.com>	7 months ago
Paul Scott	a50e4e604e	cmd/tailscale/cli: remove duplicate "tailscale " in drive subcmd usage ... Updates #cleanup Signed-off-by: Paul Scott <paul@tailscale.com>	7 months ago
Paul Scott	62d4be873d	cmd/tailscale/cli: fix drive --help usage identation ... Updates #cleanup Signed-off-by: Paul Scott <paul@tailscale.com>	7 months ago
Brad Fitzpatrick	7c1d6e35a5	all: use Go 1.22 range-over-int ... Updates #11058 Change-Id: I35e7ef9b90e83cac04ca93fd964ad00ed5b48430 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	7 months ago
Brad Fitzpatrick	0fba9e7570	cmd/tailscale/cli: prevent concurrent Start calls in 'up' ... Seems to deflake tstest/integration tests. I can't reproduce it anymore on one of my VMs that was consistently flaking after a dozen runs before. Now I can run hundreds of times. Updates #11649 Fixes #7036 Change-Id: I2f7d4ae97500d507bdd78af9e92cd1242e8e44b8 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	7 months ago
Irbe Krumina	26f9bbc02b	cmd/k8s-operator,k8s-operator: document tailscale.com Custom Resource Definitions better. (#11665) ... Updates tailscale/tailscale#10880 Signed-off-by: Irbe Krumina <irbe@tailscale.com>	7 months ago
Brad Fitzpatrick	7ec0dc3834	ipn/ipnlocal: make StartLoginInteractive take (yet unused) context ... In prep for future fix to undermentioned issue. Updates tailscale/tailscale#7036 Change-Id: Ide114db917dcba43719482ffded6a9a54630d99e Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	7 months ago
Claire Wang	9171b217ba	cmd/tailscale, ipn/ipnlocal: add suggest exit node CLI option (#11407) ... Updates tailscale/corp#17516 Signed-off-by: Claire Wang <claire@tailscale.com>	7 months ago
Irbe Krumina	38fb23f120	cmd/k8s-operator,k8s-operator: allow users to configure proxy env vars via ProxyClass (#11743) ... Adds new ProxyClass.spec.statefulSet.pod.{tailscaleContainer,tailscaleInitContainer}.Env field that allow users to provide key, value pairs that will be set as env vars for the respective containers. Allow overriding all containerboot env vars, but warn that this is not supported and might break (in docs + a warning when validating ProxyClass). Updates tailscale/tailscale#10709 Signed-off-by: Irbe Krumina <irbe@tailscale.com>	7 months ago
Brad Fitzpatrick	a1abd12f35	cmd/tailscaled, net/tstun: build for aix/ppc64 ... At least in userspace-networking mode. Fixes #11361 Change-Id: I78d33f0f7e05fe9e9ee95b97c99b593f8fe498f2 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	7 months ago
Joe Tsai	7a77a2edf1	logtail: optimize JSON processing (#11671) ... Changes made: * Avoid "encoding/json" for JSON processing, and instead use "github.com/go-json-experiment/json/jsontext". Use jsontext.Value.IsValid for validation, which is much faster. Use jsontext.AppendQuote instead of our own JSON escaping. * In drainPending, use a different maxLen depending on lowMem. In lowMem mode, it is better to perform multiple uploads than it is to construct a large body that OOMs the process. * In drainPending, if an error is encountered draining, construct an error message in the logtail JSON format rather than something that is invalid JSON. * In appendTextOrJSONLocked, use jsontext.Decoder to check whether the input is a valid JSON object. This is faster than the previous approach of unmarshaling into map[string]any and then re-marshaling that data structure. This is especially beneficial for network flow logging, which produces relatively large JSON objects. * In appendTextOrJSONLocked, enforce maxSize on the input. If too large, then we may end up in a situation where the logs can never be uploaded because it exceeds the maximum body size that the Tailscale logs service accepts. * Use "tailscale.com/util/truncate" to properly truncate a string on valid UTF-8 boundaries. * In general, remove unnecessary spaces in JSON output. Performance: name old time/op new time/op delta WriteText 776ns ± 2% 596ns ± 1% -23.24% (p=0.000 n=10+10) WriteJSON 110µs ± 0% 9µs ± 0% -91.77% (p=0.000 n=8+8) name old alloc/op new alloc/op delta WriteText 448B ± 0% 0B -100.00% (p=0.000 n=10+10) WriteJSON 37.9kB ± 0% 0.0kB ± 0% -99.87% (p=0.000 n=10+10) name old allocs/op new allocs/op delta WriteText 1.00 ± 0% 0.00 -100.00% (p=0.000 n=10+10) WriteJSON 1.08k ± 0% 0.00k ± 0% -99.91% (p=0.000 n=10+10) For text payloads, this is 1.30x faster. For JSON payloads, this is 12.2x faster. Updates #cleanup Updates tailscale/corp#18514 Signed-off-by: Joe Tsai <joetsai@digital-static.net>	7 months ago
James Tucker	8fa3026614	tsweb: switch to fastuuid for request ID generation ... Request ID generation appears prominently in some services cumulative allocation rate, and while this does not eradicate this issue (the API still makes UUID objects), it does improve the overhead of this API and reduce the amount of garbage that it produces. Updates tailscale/corp#18266 Updates tailscale/corp#19054 Signed-off-by: James Tucker <james@tailscale.com>	7 months ago
James Tucker	db760d0bac	cmd/tailscaled: move cleanup to an implicit action during startup ... This removes a potentially increased boot delay for certain boot topologies where they block on ExecStartPre that may have socket activation dependencies on other system services (such as systemd-resolved and NetworkManager). Also rename cleanup to clean up in affected/immediately nearby places per code review commentary. Fixes #11599 Signed-off-by: James Tucker <james@tailscale.com>	7 months ago
Paul Scott	da4e92bf01	cmd/tailscale/cli: prefix all --help usages with "tailscale ...", some tidying ... Also capitalises the start of all ShortHelp, allows subcommands to be hidden with a "HIDDEN: " prefix in their ShortHelp, and adds a TS_DUMP_HELP envknob to look at all --help messages together. Fixes #11664 Signed-off-by: Paul Scott <paul@tailscale.com>	7 months ago
Percy Wegmann	9da135dd64	cmd/tailscale/cli: moved share.go to drive.go ... Updates tailscale/corp#16827 Signed-off-by: Percy Wegmann <percy@tailscale.com>	7 months ago
Percy Wegmann	1e0ebc6c6d	cmd/tailscale/cli: rename share command to drive ... Updates tailscale/corp#16827 Signed-off-by: Percy Wegmann <percy@tailscale.com>	7 months ago
Irbe Krumina	231e44e742	Revert "cmd/{k8s-nameserver,k8s-operator},k8s-operator: add a kube nameserver, make operator deploy it (#11017)" (#11669) ... Temporarily reverting this PR to avoid releasing half finished featue. This reverts commit 9e2f58f846. Signed-off-by: Irbe Krumina <irbe@tailscale.com>	7 months ago
Brad Fitzpatrick	e6983baa73	cmd/tailscale/cli: fix macOS crash reading envknob in init (#11667) ... And add a test. Regression from a5e1f7d703 Fixes tailscale/corp#19036 Change-Id: If90984049af0a4820c96e1f77ddf2fce8cb3043f Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	7 months ago
Chloé Vulquin	0f3a292ebd	cli/configure: respect $KUBECONFIG (#11604) ... cmd/tailscale/cli: respect $KUBECONFIG * `$KUBECONFIG` is a `$PATH`-like: it defines a *list*. `tailscale config kubeconfig` works like the rest of the ecosystem so that if $KUBECONFIG is set it will write to the first existant file in the list, if none exist then the final entry in the list. * if `$KUBECONFIG` is an empty string, the old logic takes over. Notes: * The logic for file detection is inlined based on what `kind` does. Technically it's a race condition, since the file could be removed/added in between the processing steps, but the fallout shouldn't be too bad. https://github.com/kubernetes-sigs/kind/blob/v0.23.0-alpha/pkg/cluster/internal/kubeconfig/internal/kubeconfig/paths.go * The sandboxed (App Store) variant relies on a specific temporary entitlement to access the ~/.kube/config file. The entitlement is only granted to specific files, and so is not applicable to paths supplied by the user at runtime. While there may be other ways to achieve this access to arbitrary kubeconfig files, it's out of scope for now. Updates #11645 Signed-off-by: Chloé Vulquin <code@toast.bunkerlabs.net>	7 months ago
Brad Fitzpatrick	c71e8db058	cmd/tailscale/cli: stop spamming os.Stdout/os.Stderr in tests ... After: bradfitz@book1pro tailscale.com % ./tool/go test -c ./cmd/tailscale/cli bradfitz@book1pro tailscale.com % ./cli.test bradfitz@book1pro tailscale.com % Before: bradfitz@book1pro tailscale.com % ./tool/go test -c ./cmd/tailscale/cli bradfitz@book1pro tailscale.com % ./cli.test Warning: funnel=on for foo.test.ts.net:443, but no serve config run: `tailscale serve --help` to see how to configure handlers Warning: funnel=on for foo.test.ts.net:443, but no serve config run: `tailscale serve --help` to see how to configure handlers USAGE funnel <serve-port> {on|off} funnel status [--json] Funnel allows you to publish a 'tailscale serve' server publicly, open to the entire internet. Turning off Funnel only turns off serving to the internet. It does not affect serving to your tailnet. SUBCOMMANDS status show current serve/funnel status error: path must be absolute error: invalid TCP source "localhost:5432": missing port in address error: invalid TCP source "tcp://somehost:5432" must be one of: localhost or 127.0.0.1 tcp://somehost:5432error: invalid TCP source "tcp://somehost:0" must be one of: localhost or 127.0.0.1 tcp://somehost:0error: invalid TCP source "tcp://somehost:65536" must be one of: localhost or 127.0.0.1 tcp://somehost:65536error: path must be absolute error: cannot serve web; already serving TCP You don't have permission to enable this feature. This also moves the color handling up to a generic spot so it's not just one subcommand doing it itself. See https://github.com/tailscale/tailscale/issues/11626#issuecomment-2041795129 Fixes #11643 Updates #11626 Change-Id: I3a49e659dcbce491f4a2cb784be20bab53f72303 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	7 months ago
Brad Fitzpatrick	b0fbd85592	net/tsdial: partially fix "tailscale nc" (UserDial) on macOS ... At least in the case of dialing a Tailscale IP. Updates #4529 Change-Id: I9fd667d088a14aec4a56e23aabc2b1ffddafa3fe Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	7 months ago
Brad Fitzpatrick	a5e1f7d703	ipn/{ipnlocal,localapi}: add API to toggle use of exit node ... This is primarily for GUIs, so they don't need to remember the most recently used exit node themselves. This adds some CLI commands, but they're disabled and behind the WIP envknob, as we need to consider naming (on/off is ambiguous with running an exit node, etc) as well as automatic exit node selection in the future. For now the CLI commands are effectively developer debug things to test the LocalAPI. Updates tailscale/corp#18724 Change-Id: I9a32b00e3ffbf5b29bfdcad996a4296b5e37be7e Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	7 months ago
Maisem Ali	3f4c5daa15	wgengine/netstack: remove SubnetRouterWrapper ... It was used when we only supported subnet routers on linux and would nil out the SubnetRoutes slice as no other router worked with it, but now we support subnet routers on ~all platforms. The field it was setting to nil is now only used for network logging and nowhere else, so keep the field but drop the SubnetRouterWrapper as it's not useful. Updates #cleanup Change-Id: Id03f9b6ec33e47ad643e7b66e07911945f25db79 Signed-off-by: Maisem Ali <maisem@tailscale.com>	7 months ago
Brad Fitzpatrick	ac2522092d	cmd/tailscale/cli: make exit-node list not random ... The output was changing randomly per run, due to range over a map. Then some misc style tweaks I noticed while debugging. Fixes #11629 Change-Id: I67aef0e68566994e5744d4828002f6eb70810ee1 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	7 months ago
Will Morrison	306bacc669	cmd/tailscale/cli: Add CLI command to update certs on Synology devices. ... Fixes #4674 Signed-off-by: Will Morrison <william.barr.morrison@gmail.com>	7 months ago
Charlotte Brandhorst-Satzkorn	98cf71cd73	tailscale: switch tailfs to drive syntax for api and logs (#11625) ... This change switches the api to /drive, rather than the previous /tailfs as well as updates the log lines to reflect the new value. It also cleans up some existing tailfs references. Updates tailscale/corp#16827 Signed-off-by: Charlotte Brandhorst-Satzkorn <charlotte@tailscale.com>	7 months ago
Charlotte Brandhorst-Satzkorn	93618a3518	tailscale: update tailfs functions and vars to use drive naming (#11597) ... This change updates all tailfs functions and the majority of the tailfs variables to use the new drive naming. Updates tailscale/corp#16827 Signed-off-by: Charlotte Brandhorst-Satzkorn <charlotte@tailscale.com>	7 months ago
Charlotte Brandhorst-Satzkorn	14683371ee	tailscale: update tailfs file and package names (#11590) ... This change updates the tailfs file and package names to their new naming convention. Updates #tailscale/corp#16827 Signed-off-by: Charlotte Brandhorst-Satzkorn <charlotte@tailscale.com>	7 months ago
Brad Fitzpatrick	1c259100b0	cmd/{derper,derpprobe}: add --version flag ... Fixes #11582 Change-Id: If99fc1ab6b89d624fbb07bd104dd882d2c7b50b4 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	7 months ago
Brad Fitzpatrick	ec87e219ae	logtail: delete unused code from old way to configure zstd ... Updates #cleanup Change-Id: I666ecf08ea67e461adf2a3f4daa9d1753b2dc1e4 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	7 months ago
Irbe Krumina	9b5176c4d9	cmd/k8s-operator: fix failing tests (#11541) ... Updates#cleanup Signed-off-by: Irbe Krumina <irbe@tailscale.com>	7 months ago
Irbe Krumina	9e2f58f846	cmd/{k8s-nameserver,k8s-operator},k8s-operator: add a kube nameserver, make operator deploy it (#11017) ... * cmd/k8s-nameserver,k8s-operator: add a nameserver that can resolve ts.net DNS names in cluster. Adds a simple nameserver that can respond to A record queries for ts.net DNS names. It can respond to queries from in-memory records, populated from a ConfigMap mounted at /config. It dynamically updates its records as the ConfigMap contents changes. It will respond with NXDOMAIN to queries for any other record types (AAAA to be implemented in the future). It can respond to queries over UDP or TCP. It runs a miekg/dns DNS server with a single registered handler for ts.net domain names. Queries for other domain names will be refused. The intended use of this is: 1) to allow non-tailnet cluster workloads to talk to HTTPS tailnet services exposed via Tailscale operator egress over HTTPS 2) to allow non-tailnet cluster workloads to talk to workloads in the same cluster that have been exposed to tailnet over their MagicDNS names but on their cluster IPs. Updates tailscale/tailscale#10499 Signed-off-by: Irbe Krumina <irbe@tailscale.com> * cmd/k8s-operator/deploy/crds,k8s-operator: add DNSConfig CustomResource Definition DNSConfig CRD can be used to configure the operator to deploy kube nameserver (./cmd/k8s-nameserver) to cluster. Signed-off-by: Irbe Krumina <irbe@tailscale.com> * cmd/k8s-operator,k8s-operator: optionally reconcile nameserver resources Adds a new reconciler that reconciles DNSConfig resources. If a DNSConfig is deployed to cluster, the reconciler creates kube nameserver resources. This reconciler is only responsible for creating nameserver resources and not for populating nameserver's records. Signed-off-by: Irbe Krumina <irbe@tailscale.com> * cmd/{k8s-operator,k8s-nameserver}: generate DNSConfig CRD for charts, append to static manifests Signed-off-by: Irbe Krumina <irbe@tailscale.com> --------- Signed-off-by: Irbe Krumina <irbe@tailscale.com>	7 months ago