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tailscale/util
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>
2 years ago
..
cache util/cache: fix missing interface methods (#11275) 2 years ago
cibuild all: update copyright and license headers 3 years ago
clientmetric util/clientmetric: allow client metric values to be provided by a function 3 years ago
cloudenv util/cloudenv: add support for DigitalOcean 2 years ago
cmpver util/cmpver: add Less/LessEq helper funcs 2 years ago
codegen all: use Go 1.22 range-over-int 2 years ago
cstruct all: use Go 1.22 range-over-int 2 years ago
ctxkey all: use reflect.TypeFor now available in Go 1.22 (#11078) 2 years ago
deephash all: use Go 1.22 range-over-int 2 years ago
dirwalk all: use tstest.Replace more 3 years ago
dnsname all: use Go 1.22 range-over-int 2 years ago
execqueue control/controlclient,util/execqueue: extract execqueue into a package 2 years ago
expvarx all: use Go 1.22 range-over-int 2 years ago
fastuuid all: use Go 1.22 range-over-int 2 years ago
goroutines util/goroutines: let ScrubbedGoroutineDump get only current stack 3 years ago
groupmember util/groupmember: fail earlier if group doesn't exist, use slices.Contains 2 years ago
hashx all: use Go 1.22 range-over-int 2 years ago
httphdr util/httphdr: add new package for parsing HTTP headers (#9797) 2 years ago
httpm util/httpm: don't run test if .git doesn't exist 2 years ago
jsonutil all: use Go 1.22 range-over-int 2 years ago
limiter all: use Go 1.22 range-over-int 2 years ago
lineread all: update copyright and license headers 3 years ago
linuxfw cmd{containerboot,k8s-operator},util/linuxfw: support ExternalName Services (#11802) 2 years ago
lru all: use Go 1.22 range-over-int 2 years ago
mak various: add golangci-lint, fix issues (#7905) 3 years ago
multierr all: use Go 1.22 range-over-int 2 years ago
must all: update copyright and license headers 3 years ago
nocasemaps all: use Go 1.22 range-over-int 2 years ago
osdiag ipn/local: log OS-specific diagnostic information as JSON (#11700) 2 years ago
osshare all: update copyright and license headers 3 years ago
osuser util/osuser: add unit test for parseGroupIds 2 years ago
pidowner all: use Go 1.22 range-over-int 2 years ago
precompress all: update copyright and license headers 3 years ago
progresstracking ipn/localapi: add support for multipart POST to file-put 2 years ago
quarantine all: update copyright and license headers 3 years ago
race all: use Go 1.22 range-over-int 2 years ago
racebuild all: update copyright and license headers 3 years ago
rands util/rands: add Shuffle and Perm functions with on-stack RNG state 2 years ago
reload util/reload: add new package to handle periodic value loading 2 years ago
ringbuffer all: use Go 1.22 range-over-int 2 years ago
set all: use Go 1.22 range-over-int 2 years ago
singleflight all: use Go 1.22 range-over-int 2 years ago
slicesx all: use Go 1.22 range-over-int 2 years ago
syspolicy util/syspolicy: clean up doc grammar and consistency 2 years ago
sysresources util/sysresources, magicsock: scale DERP buffer based on system memory 3 years ago
systemd all: update copyright and license headers 3 years ago
testenv util/testenv: add new package to hold InTest 2 years ago
topk all: use Go 1.22 range-over-int 2 years ago
truncate util/truncate: support []byte as well (#11614) 2 years ago
uniq all: use Go 1.22 range-over-int 2 years ago
vizerror util/vizerror: add As function to get wrapped Error 3 years ago
winutil all: use Go 1.22 range-over-int 2 years ago
zstdframe all: use Go 1.22 range-over-int 2 years ago