util/cloudenv: add Azure support & DNS IPs

And rewrite cloud detection to try to do only zero or one metadata
discovery request for all clouds, only doing a first (or second) as
confidence increases. Work remains for Windows, but a start.

And add Cloud to tailcfg.Hostinfo, which helped with testing using
"tailcfg debug hostinfo".

Updates #4983 (Linux only)
Updates #4984

Change-Id: Ib03337089122ce0cb38c34f724ba4b4812bc614e
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This commit is contained in:
Brad Fitzpatrick
2022-06-29 22:58:44 -07:00
committed by Brad Fitzpatrick
parent ec649e707f
commit 6b71568eb7
10 changed files with 118 additions and 109 deletions

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@@ -1,6 +1,5 @@
tailscale.com/cmd/tailscale dependencies: (generated by github.com/tailscale/depaware)
cloud.google.com/go/compute/metadata from tailscale.com/util/cloudenv
W 💣 github.com/alexbrainman/sspi from github.com/alexbrainman/sspi/negotiate+
W github.com/alexbrainman/sspi/internal/common from github.com/alexbrainman/sspi/negotiate
W 💣 github.com/alexbrainman/sspi/negotiate from tailscale.com/net/tshttpproxy
@@ -86,7 +85,7 @@ tailscale.com/cmd/tailscale dependencies: (generated by github.com/tailscale/dep
tailscale.com/types/structs from tailscale.com/ipn+
tailscale.com/types/views from tailscale.com/tailcfg+
tailscale.com/util/clientmetric from tailscale.com/net/netcheck+
tailscale.com/util/cloudenv from tailscale.com/net/dnscache
tailscale.com/util/cloudenv from tailscale.com/net/dnscache+
W tailscale.com/util/cmpver from tailscale.com/net/tshttpproxy
tailscale.com/util/dnsname from tailscale.com/cmd/tailscale/cli+
W tailscale.com/util/endian from tailscale.com/net/netns

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@@ -1,6 +1,5 @@
tailscale.com/cmd/tailscaled dependencies: (generated by github.com/tailscale/depaware)
cloud.google.com/go/compute/metadata from tailscale.com/util/cloudenv
W 💣 github.com/alexbrainman/sspi from github.com/alexbrainman/sspi/internal/common+
W github.com/alexbrainman/sspi/internal/common from github.com/alexbrainman/sspi/negotiate
W 💣 github.com/alexbrainman/sspi/negotiate from tailscale.com/net/tshttpproxy