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815bb291c9
tailscale/cmd
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Brad Fitzpatrick 815bb291c9 cmd/tailscale/cli: allow tag without "tag:" prefix in 'tailscale up' 
If a user passes --advertise-tags=foo,bar (with no colons in any
segment), automatically prepend "tag:" client-side so it goes on the
wire as "tag:foo,tag:bar". Segments that already contain a colon are
left untouched and must be fully-qualified ("tag:foo"), which keeps
the door open for future colon-bearing syntax.

This was originally added in cd07437ad (2020-10-28) and then reverted
in 1be01ddc6 (2020-11-10) over forward-compatibility concerns. But
then it was realized in 2026-04-29 that this was always safe for
future extensiblity anyway (tags can't contain colons-- tag:foo:bar is
invalid anyway, per the 2020 CheckTag restrictions). So if we wanted
to perhaps some hypothetical --advertise-tags=tagset:setfoo or "group:foo",
we'd still have syntax to do, as it can't conflict with tag:group:foo.

Avery signed off on this on Slack: "Ok, I withdraw my objection to
auto-qualifying tag names in advertise-tags and I hope I won't regret
it :)"

Updates #861

Change-Id: I06935b0d3ae909894c95c9c2e185b7d6a219ff32
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2026-04-30 07:13:48 -07:00
..
addlicense all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
build-webclient all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
checkmetrics all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
cigocacher cmd/cigocacher: make --stats flag best-effort (#18761) 2026-02-19 16:06:12 +00:00
cloner cmd/cloner: deep-clone pointer elements in map-of-slice values 2026-04-17 11:36:05 -04:00
connector-gen all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
containerboot cmd/containerboot,cmd/k8s-proxy,kube: add authkey renewal to k8s-proxy (#19221) 2026-04-15 16:13:46 +01:00
derper cmd/derper,derp: add metrics for rate limit hits (#19560) 2026-04-29 10:29:09 -07:00
derpprobe all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
dist all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
distsign all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
featuretags all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
get-authkey all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
gitops-pusher cmd/vet: add subtestnames analyzer; fix all existing violations 2026-04-05 15:52:51 -07:00
hello cmd/hello: remove hello.ipn.dev (#19567) 2026-04-28 17:54:29 -07:00
jsonimports all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
k8s-nameserver cmd/vet: add subtestnames analyzer; fix all existing violations 2026-04-05 15:52:51 -07:00
k8s-operator cmd/k8s-operator: add nodeSelector to DNSConfig resource (#19429) 2026-04-29 15:56:33 +01:00
k8s-proxy cmd/containerboot,cmd/k8s-proxy,kube: add authkey renewal to k8s-proxy (#19221) 2026-04-15 16:13:46 +01:00
mkmanifest all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
mkpkg all: use Go 1.26 things, run most gofix modernizers 2026-03-06 13:32:03 -08:00
mkversion all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
nardump tool/updateflakes, cmd/nardump: replace update-flake.sh with Go tool 2026-04-28 10:18:32 -07:00
natc all: use bart.Lite instead of bart.Table where appropriate 2026-03-24 14:45:23 +00:00
netlogfmt all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
nginx-auth all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
omitsize all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
pgproxy all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
printdep cmd/printdep: add --next flag to use rc Go build hash instead 2026-01-27 14:49:56 -08:00
proxy-test-server all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
proxy-to-grafana all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
sniproxy all: use Go 1.26 things, run most gofix modernizers 2026-03-06 13:32:03 -08:00
speedtest all: use Go 1.26 things, run most gofix modernizers 2026-03-06 13:32:03 -08:00
ssh-auth-none-demo ssh: replace tempfork with tailscale/gliderssh 2026-04-07 11:59:38 +01:00
stunc all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
stund derp,types,util: use bufio Peek+Discard for allocation-free fast reads (#19067) 2026-03-24 10:52:20 -04:00
stunstamp all: use Go 1.26 things, run most gofix modernizers 2026-03-06 13:32:03 -08:00
sync-containers all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
systray client/systray: support several different color themes 2026-04-27 18:54:14 -07:00
tailscale cmd/tailscale/cli: allow tag without "tag:" prefix in 'tailscale up' 2026-04-30 07:13:48 -07:00
tailscaled go.mod: bump github.com/google/go-containerregistry (#19500) 2026-04-23 10:39:27 -07:00
testcontrol all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
testwrapper cmd/testwrapper: make test tolerant of a GOEXPERIMENT being set 2026-03-06 14:05:35 -08:00
tl-longchain all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
tsconnect tsd, all: add Sys.ExtraRootCAs, plumb through TLS dial paths 2026-04-07 18:10:54 -07:00
tsidp go.mod: bump github.com/google/go-containerregistry (#19500) 2026-04-23 10:39:27 -07:00
tsnet-proxy cmd/tsnet-proxy: add tsnet-based port proxy tool (#19468) 2026-04-22 13:34:18 -04:00
tsp control/tsp, cmd/tsp: add low-level Tailscale protocol client and tool 2026-04-16 20:00:25 -07:00
tsshd all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
tta tstest/natlab/vmtest: add TestDiscoKeyChange 2026-04-29 12:58:00 -07:00
vet cmd/vet: add subtestnames analyzer; fix all existing violations 2026-04-05 15:52:51 -07:00
viewer cmd/cloner: deep-clone pointer elements in map-of-slice values 2026-04-17 11:36:05 -04:00
vnet all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00
xdpderper all: remove AUTHORS file and references to it 2026-01-23 15:49:45 -08:00