tailscale

Commit Graph

Author	SHA1	Message	Date
Tom Proctor	01a7726cf7	cmd/containerboot,cmd/k8s-operator: enable IPv6 for fqdn egress proxies (#12577 ) cmd/containerboot,cmd/k8s-operator: enable IPv6 for fqdn egress proxies Don't skip installing egress forwarding rules for IPv6 (as long as the host supports IPv6), and set headless services `ipFamilyPolicy` to `PreferDualStack` to optionally enable both IP families when possible. Note that even with `PreferDualStack` set, testing a dual-stack GKE cluster with the default DNS setup of kube-dns did not correctly set both A and AAAA records for the headless service, and instead only did so when switching the cluster DNS to Cloud DNS. For both IPv4 and IPv6 to work simultaneously in a dual-stack cluster, we require headless services to return both A and AAAA records. If the host doesn't support IPv6 but the FQDN specified only has IPv6 addresses available, containerboot will exit with error code 1 and an error message because there is no viable egress route. Fixes #12215 Signed-off-by: Tom Proctor <tomhjp@users.noreply.github.com>	4 months ago
Tom Proctor	3099323976	cmd/k8s-operator,k8s-operator,go.{mod,sum}: publish proxy status condition for annotated services (#12463 ) Adds a new TailscaleProxyReady condition type for use in corev1.Service conditions. Also switch our CRDs to use metav1.Condition instead of ConnectorCondition. The Go structs are seralized identically, but it updates some descriptions and validation rules. Update k8s controller-tools and controller-runtime deps to fix the documentation generation for metav1.Condition so that it excludes comments and TODOs. Stop expecting the fake client to populate TypeMeta in tests. See kubernetes-sigs/controller-runtime#2633 for details of the change. Finally, make some minor improvements to validation for service hostnames. Fixes #12216 Co-authored-by: Irbe Krumina <irbe@tailscale.com> Signed-off-by: Tom Proctor <tomhjp@users.noreply.github.com>	4 months ago
Irbe Krumina	8cc2738609	cmd/{containerboot,k8s-operator}: store proxy device ID early to help with cleanup for broken proxies (#12425 ) * cmd/containerboot: store device ID before setting up proxy routes. For containerboot instances whose state needs to be stored in a Kubernetes Secret, we additonally store the device's ID, FQDN and IPs. This is used, between other, by the Kubernetes operator, who uses the ID to delete the device when resources need cleaning up and writes the FQDN and IPs on various kube resource statuses for visibility. This change shifts storing device ID earlier in the proxy setup flow, to ensure that if proxy routing setup fails, the device can still be deleted. Updates tailscale/tailscale#12146 Signed-off-by: Irbe Krumina <irbe@tailscale.com> * code review feedback Signed-off-by: Irbe Krumina <irbe@tailscale.com> --------- Signed-off-by: Irbe Krumina <irbe@tailscale.com>	5 months ago
Irbe Krumina	807934f00c	cmd/k8s-operator,k8s-operator: allow proxies accept advertized routes. (#12388 ) Add a new .spec.tailscale.acceptRoutes field to ProxyClass, that can be optionally set to true for the proxies to accept routes advertized by other nodes on tailnet (equivalent of setting --accept-routes to true). Updates tailscale/tailscale#12322,tailscale/tailscale#10684 Signed-off-by: Irbe Krumina <irbe@tailscale.com>	5 months ago
Irbe Krumina	3a6d3f1a5b	cmd/k8s-operator,k8s-operator,go.{mod,sum}: make individual proxy images/image pull policies configurable (#11928 ) cmd/k8s-operator,k8s-operator,go.{mod,sum}: make individual proxy images/image pull policies configurable Allow to configure images and image pull policies for individual proxies via ProxyClass.Spec.StatefulSet.Pod.{TailscaleContainer,TailscaleInitContainer}.Image, and ProxyClass.Spec.StatefulSet.Pod.{TailscaleContainer,TailscaleInitContainer}.ImagePullPolicy fields. Document that we have images in ghcr.io on the relevant Helm chart fields. Updates tailscale/tailscale#11675 Signed-off-by: Irbe Krumina <irbe@tailscale.com>	5 months ago
Andrew Dunham	e88a5dbc92	various: fix lint warnings Some lint warnings caught by running 'make lint' locally. Updates #cleanup Signed-off-by: Andrew Dunham <andrew@du.nham.ca> Change-Id: I1534ed6f2f5e1eb029658906f9d62607dad98ca3	5 months ago
Irbe Krumina	d86d1e7601	cmd/k8s-operator,cmd/containerboot,ipn,k8s-operator: turn off stateful filter for egress proxies. (#12075 ) Turn off stateful filtering for egress proxies to allow cluster traffic to be forwarded to tailnet. Allow configuring stateful filter via tailscaled config file. Deprecate EXPERIMENTAL_TS_CONFIGFILE_PATH env var and introduce a new TS_EXPERIMENTAL_VERSIONED_CONFIG env var that can be used to provide containerboot a directory that should contain one or more tailscaled config files named cap-<tailscaled-cap-version>.hujson. Containerboot will pick the one with the newest capability version that is not newer than its current capability version. Proxies with this change will not work with older Tailscale Kubernetes operator versions - users must ensure that the deployed operator is at the same version or newer (up to 4 version skew) than the proxies. Updates tailscale/tailscale#12061 Signed-off-by: Irbe Krumina <irbe@tailscale.com> Co-authored-by: Maisem Ali <maisem@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
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
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
Irbe Krumina	4cbef20569	cmd/k8s-operator: redact auth key from debug logs (#11523 ) Updates#cleanup Signed-off-by: Irbe Krumina <irbe@tailscale.com>	7 months ago
Irbe Krumina	b0c3e6f6c5	cmd/k8s-operator,ipn/conf.go: fix --accept-routes for proxies (#11453 ) Fix a bug where all proxies got configured with --accept-routes set to true. The bug was introduced in https://github.com/tailscale/tailscale/pull/11238. Updates#cleanup Signed-off-by: Irbe Krumina <irbe@tailscale.com>	8 months ago
Irbe Krumina	303125d96d	cmd/k8s-operator: configure all proxies with declarative config (#11238 ) Containerboot container created for operator's ingress and egress proxies are now always configured by passing a configfile to tailscaled (tailscaled --config <configfile-path>. It does not run 'tailscale set' or 'tailscale up'. Upgrading existing setups to this version as well as downgrading existing setups at this version works. Updates tailscale/tailscale#10869 Signed-off-by: Irbe Krumina <irbe@tailscale.com>	8 months ago
Irbe Krumina	5bd19fd3e3	cmd/k8s-operator,k8s-operator: proxy configuration mechanism via a new ProxyClass custom resource (#11074 ) * cmd/k8s-operator,k8s-operator: introduce proxy configuration mechanism via ProxyClass custom resource. ProxyClass custom resource can be used to specify customizations for the proxy resources created by the operator. Add a reconciler that validates ProxyClass resources and sets a Ready condition to True or False with a corresponding reason and message. This is required because some fields (labels and annotations) require complex validations that cannot be performed at custom resource apply time. Reconcilers that use the ProxyClass to configure proxy resources are expected to verify that the ProxyClass is Ready and not proceed with resource creation if configuration from a ProxyClass that is not yet Ready is required. If a tailscale ingress/egress Service is annotated with a tailscale.com/proxy-class annotation, look up the corresponding ProxyClass and, if it is Ready, apply the configuration from the ProxyClass to the proxy's StatefulSet. If a tailscale Ingress has a tailscale.com/proxy-class annotation and the referenced ProxyClass custom resource is available and Ready, apply configuration from the ProxyClass to the proxy resources that will be created for the Ingress. Add a new .proxyClass field to the Connector spec. If connector.spec.proxyClass is set to a ProxyClass that is available and Ready, apply configuration from the ProxyClass to the proxy resources created for the Connector. Ensure that when Helm chart is packaged, the ProxyClass yaml is added to chart templates. Ensure that static manifest generator adds ProxyClass yaml to operator.yaml. Regenerate operator.yaml Signed-off-by: Irbe Krumina <irbe@tailscale.com>	9 months ago
Irbe Krumina	a6cc2fdc3e	cmd/{containerboot,k8s-operator/deploy/manifests}: optionally allow proxying cluster traffic to a cluster target via ingress proxy (#11036 ) * cmd/containerboot,cmd/k8s-operator/deploy/manifests: optionally forward cluster traffic via ingress proxy. If a tailscale Ingress has tailscale.com/experimental-forward-cluster-traffic-via-ingress annotation, configure the associated ingress proxy to have its tailscale serve proxy to listen on Pod's IP address. This ensures that cluster traffic too can be forwarded via this proxy to the ingress backend(s). In containerboot, if EXPERIMENTAL_PROXY_CLUSTER_TRAFFIC_VIA_INGRESS is set to true and the node is Kubernetes operator ingress proxy configured via Ingress, make sure that traffic from within the cluster can be proxied to the ingress target. Updates tailscale/tailscale#10499 Signed-off-by: Irbe Krumina <irbe@tailscale.com>	9 months ago
Irbe Krumina	50b52dbd7d	cmd/k8s-operator: sync StatefulSet labels to their Pods (#10861 ) So that users have predictable label values to use when configuring network policies. Updates tailscale/tailscale#10854 Signed-off-by: Irbe Krumina <irbe@tailscale.com>	10 months ago
Irbe Krumina	169778e23b	cmd/k8s-operator: minor fix in name gen (#10830 ) Updates#cleanup Signed-off-by: Irbe Krumina <irbe@tailscale.com>	10 months ago
Irbe Krumina	469af614b0	cmd/k8s-operator: fix base truncating for extra long Service names (#10825 ) cmd/k8s-operator: fix base truncating for extra long Service names StatefulSet names for ingress/egress proxies are calculated using Kubernetes name generator and the parent resource name as a base. The name generator also cuts the base, but has a higher max cap. This commit fixes a bug where, if we get a shortened base back from the generator, we cut off too little as the base that we have cut will be passed into the generator again, which will then itself cut less because the base is shorter- so we end up with a too long name again. Updates tailscale/tailscale#10807 Co-authored-by: Maisem Ali <maisem@tailscale.com> Signed-off-by: Irbe Krumina <irbekrm@gmail.com>	10 months ago
Irbe Krumina	05093ea7d9	cmd/k8s-operator,k8s-operator: allow the operator to deploy exit nodes via Connector custom resource (#10724 ) cmd/k8s-operator/deploy/crds,k8s-operator/apis/v1alpha1: allow to define an exit node via Connector CR. Make it possible to define an exit node to be deployed to a Kubernetes cluster via Connector Custom resource. Also changes to Connector API so that one Connector corresponds to one Tailnet node that can be either a subnet router or an exit node or both. The Kubernetes operator parses Connector custom resource and, if .spec.isExitNode is set, configures that Tailscale node deployed for that connector as an exit node. Signed-off-by: Irbe Krumina <irbe@tailscale.com> Co-authored-by: Anton Tolchanov <anton@tailscale.com>	10 months ago
Irbe Krumina	1a08ea5990	cmd/k8s-operator: operator can create subnetrouter (#9505 ) * k8s-operator,cmd/k8s-operator,Makefile,scripts,.github/workflows: add Connector kube CRD. Connector CRD allows users to configure the Tailscale Kubernetes operator to deploy a subnet router to expose cluster CIDRs or other CIDRs available from within the cluster to their tailnet. Also adds various CRD related machinery to generate CRD YAML, deep copy implementations etc. Engineers will now have to run 'make kube-generate-all` after changing kube files to ensure that all generated files are up to date. * cmd/k8s-operator,k8s-operator: reconcile Connector resources Reconcile Connector resources, create/delete subnetrouter resources in response to changes to Connector(s). Connector reconciler will not be started unless ENABLE_CONNECTOR env var is set to true. This means that users who don't want to use the alpha Connector custom resource don't have to install the Connector CRD to their cluster. For users who do want to use it the flow is: - install the CRD - install the operator (via Helm chart or using static manifests). For Helm users set .values.enableConnector to true, for static manifest users, set ENABLE_CONNECTOR to true in the static manifest. Updates tailscale/tailscale#502 Signed-off-by: Irbe Krumina <irbe@tailscale.com>	11 months ago
Irbe Krumina	18ceb4e1f6	cmd/{containerboot,k8s-operator}: allow users to define tailnet egress target by FQDN (#10360 ) * cmd/containerboot: proxy traffic to tailnet target defined by FQDN Add a new Service annotation tailscale.com/tailnet-fqdn that users can use to specify a tailnet target for which an egress proxy should be deployed in the cluster. Updates tailscale/tailscale#10280 Signed-off-by: Irbe Krumina <irbe@tailscale.com>	11 months ago
Irbe Krumina	66471710f8	cmd/k8s-operator: truncate long StatefulSet name prefixes (#10343 ) Kubernetes can generate StatefulSet names that are too long and result in invalid Pod revision hash label values. Calculate whether a StatefulSet name generated for a Service or Ingress will be too long and if so, truncate it. Updates tailscale/tailscale#10284 Signed-off-by: Irbe Krumina <irbe@tailscale.com>	11 months ago
Irbe Krumina	ed1b935238	cmd/k8s-operator: allow to install operator via helm (#9920 ) Initial helm manifests. Updates tailscale/tailscale#9222 Signed-off-by: Irbe Krumina <irbe@tailscale.com> Co-authored-by: Maisem Ali <maisem@tailscale.com>	1 year ago
Irbe Krumina	e9956419f6	cmd/k8s-operator: allow cleanup of cluster resources for deleted devices (#9917 ) Users should delete proxies by deleting or modifying the k8s cluster resources that they used to tell the operator to create they proxy. With this flow, the tailscale operator will delete the associated device from the control. However, in some cases users might have already deleted the device from the control manually. Updates tailscale/tailscale#9773 Signed-off-by: Irbe Krumina <irbe@tailscale.com>	1 year ago
Irbe Krumina	cac290da87	cmd/k8s-operator: users can configure firewall mode for kube operator proxies (#9769 ) * cmd/k8s-operator: users can configure operator to set firewall mode for proxies Users can now pass PROXY_FIREWALL_MODE={nftables,auto,iptables} to operator to make it create ingress/egress proxies with that firewall mode Also makes sure that if an invalid firewall mode gets configured, the operator will not start provisioning proxy resources, but will instead log an error and write an error event to the related Service. Updates tailscale/tailscale#9310 Signed-off-by: Irbe Krumina <irbe@tailscale.com>	1 year ago
Maisem Ali	f53c3be07c	cmd/k8s-operator: use our own container image instead of busybox We already have sysctl in the `tailscale/tailscale` image, just use that. Updates #cleanup Signed-off-by: Maisem Ali <maisem@tailscale.com>	1 year ago
Maisem Ali	5f4d76c18c	cmd/k8s-operator: rename egress annotation It was tailscale.com/ts-tailnet-target-ip, which was pretty redundant. Change it to tailscale.com/tailnet-ip. Updates #502 Signed-off-by: Maisem Ali <maisem@tailscale.com>	1 year ago
Maisem Ali	794650fe50	cmd/k8s-operator: emit event if HTTPS is disabled on Tailnet Instead of confusing users, emit an event that explicitly tells the user that HTTPS is disabled on the tailnet and that ingress may not work until they enable it. Updates #9141 Signed-off-by: Maisem Ali <maisem@tailscale.com>	1 year ago
Irbe Krumina	fe709c81e5	cmd/k8s-operator,cmd/containerboot: add kube egress proxy (#9031 ) First part of work for the functionality that allows users to create an egress proxy to access Tailnet services from within Kubernetes cluster workloads. This PR allows creating an egress proxy that can access Tailscale services over HTTP only. Updates tailscale/tailscale#8184 Signed-off-by: irbekrm <irbekrm@gmail.com> Co-authored-by: Maisem Ali <maisem@tailscale.com> Co-authored-by: Rhea Ghosh <rhea@tailscale.com>	1 year ago
Maisem Ali	c919ff540f	cmd/k8s-operator,ipn/store/kubestore: patch secrets instead of updating We would call Update on the secret, but that was racey and would occasionaly fail. Instead use patch whenever we can. Fixes errors like ``` boot: 2023/08/29 01:03:53 failed to set serve config: sending serve config: updating config: writing ServeConfig to StateStore: Operation cannot be fulfilled on secrets "ts-webdav-kfrzv-0": the object has been modified; please apply your changes to the latest version and try again {"level":"error","ts":"2023-08-29T01:03:48Z","msg":"Reconciler error","controller":"ingress","controllerGroup":"networking.k8s.io","controllerKind":"Ingress","Ingress":{"name":"webdav","namespace":"default"},"namespace":"default","name":"webdav","reconcileID":"96f5cfed-7782-4834-9b75-b0950fd563ed","error":"failed to provision: failed to create or get API key secret: Operation cannot be fulfilled on secrets \"ts-webdav-kfrzv-0\": the object has been modified; please apply your changes to the latest version and try again","stacktrace":"sigs.k8s.io/controller-runtime/pkg/internal/controller.(Controller).reconcileHandler\n\tsigs.k8s.io/controller-runtime@v0.15.0/pkg/internal/controller/controller.go:324\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(Controller).processNextWorkItem\n\tsigs.k8s.io/controller-runtime@v0.15.0/pkg/internal/controller/controller.go:265\nsigs.k8s.io/controller-runtime/pkg/internal/controller.(*Controller).Start.func2.2\n\tsigs.k8s.io/controller-runtime@v0.15.0/pkg/internal/controller/controller.go:226"} ``` Updates #502 Updates #7895 Signed-off-by: Maisem Ali <maisem@tailscale.com>	1 year ago
Mike Beaumont	3451b89e5f	cmd/k8s-operator: put Tailscale IPs in Service ingress status Updates #502 Signed-off-by: Mike Beaumont <mjboamail@gmail.com>	1 year ago
Maisem Ali	c8dea67cbf	cmd/k8s-operator: add support for Ingress resources Previously, the operator would only monitor Services and create a Tailscale StatefulSet which acted as a L3 proxy which proxied traffic inbound to the Tailscale IP onto the services ClusterIP. This extends that functionality to also monitor Ingress resources where the `ingressClassName=tailscale` and similarly creates a Tailscale StatefulSet, acting as a L7 proxy instead. Users can override the desired hostname by setting: ``` - tls hosts: - "foo" ``` Hostnames specified under `rules` are ignored as we only create a single host. This is emitted as an event for users to see. Fixes #7895 Signed-off-by: Maisem Ali <maisem@tailscale.com>	1 year ago
Maisem Ali	12ac672542	cmd/k8s-operator: handle changes to services w/o teardown Previously users would have to unexpose/expose the service in order to change Hostname/TargetIP. This now applies those changes by causing a StatefulSet rollout now that `a61a9ab087` is in. Updates #502 Signed-off-by: Maisem Ali <maisem@tailscale.com>	1 year ago
Brad Fitzpatrick	98a5116434	all: adjust some build tags for plan9 I'm not saying it works, but it compiles. Updates #5794 Change-Id: I2f3c99732e67fe57a05edb25b758d083417f083e Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>	1 year ago
Maisem Ali	836f932ead	cmd/k8s-operator: split operator.go into svc.go/sts.go Updates #502 Signed-off-by: Maisem Ali <maisem@tailscale.com>	1 year ago

36 Commits (01aa01f3108150196e7402958674e49d20cd68a1)