mirror of
https://gitea.elkins.co/Networking/ccl.git
synced 2025-03-09 12:41:40 -05:00
Add nsupdate command
Will send updates to the configured dns server. To accomodate, added a global options section to the configuration as well. TODO: per-container domain name, dns server, and tsig keys Status: lightly tested development version, needs field testing
This commit is contained in:
parent
8a3da3f244
commit
9740f61e81
50
cmd/nsupdate.go
Normal file
50
cmd/nsupdate.go
Normal file
@ -0,0 +1,50 @@
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/*
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Package cmd defines user commands accessible from the cli tool.
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Copyright © 2022-2023 Joel D. Elkins <joel@elkins.co>
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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package cmd
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import (
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"gitea.elkins.co/Networking/ccl/internal/pkg/command"
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"gitea.elkins.co/Networking/ccl/internal/pkg/config"
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"gitea.elkins.co/Networking/ccl/internal/pkg/container"
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"github.com/spf13/cobra"
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)
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// createCmd represents the create command
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var nsupdateCmd = &cobra.Command{
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Use: "nsupdate",
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Short: "Update DNS records",
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Args: cobra.OnlyValidArgs,
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ValidArgsFunction: validNouns,
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Long: `Update DNS records to identify the configured containers.`,
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Run: func(_ *cobra.Command, args []string) {
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conts := config.Union(args, contMask)
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execForEach(conts, func(c *container.Container) command.Set {
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return c.NsUpdateCommands(config.Options.DomainName, config.Options.DNSServer, config.Options.TSIGName, config.Options.TSIGKey)
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}, 0)
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},
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}
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func init() {
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rootCmd.AddCommand(nsupdateCmd)
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}
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9
go.mod
9
go.mod
@ -6,6 +6,7 @@ require (
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github.com/containers/common v0.55.4
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github.com/containers/podman/v4 v4.6.2
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github.com/emirpasic/gods v1.18.1
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github.com/miekg/dns v1.1.50
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github.com/opencontainers/runtime-spec v1.1.0
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github.com/pelletier/go-toml v1.9.5
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github.com/sirupsen/logrus v1.9.3
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@ -115,13 +116,13 @@ require (
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go.mongodb.org/mongo-driver v1.12.1 // indirect
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go.mozilla.org/pkcs7 v0.0.0-20210826202110-33d05740a352 // indirect
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go.opencensus.io v0.24.0 // indirect
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golang.org/x/crypto v0.12.0 // indirect
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golang.org/x/crypto v0.16.0 // indirect
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golang.org/x/mod v0.12.0 // indirect
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golang.org/x/net v0.14.0 // indirect
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golang.org/x/sync v0.3.0 // indirect
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golang.org/x/sys v0.11.0 // indirect
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golang.org/x/term v0.11.0 // indirect
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golang.org/x/text v0.12.0 // indirect
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golang.org/x/sys v0.15.0 // indirect
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golang.org/x/term v0.15.0 // indirect
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golang.org/x/text v0.14.0 // indirect
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golang.org/x/tools v0.12.0 // indirect
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google.golang.org/genproto/googleapis/rpc v0.0.0-20230807174057-1744710a1577 // indirect
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google.golang.org/grpc v1.57.0 // indirect
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21
go.sum
21
go.sum
@ -651,6 +651,8 @@ github.com/matttproud/golang_protobuf_extensions v1.0.2-0.20181231171920-c182aff
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github.com/matttproud/golang_protobuf_extensions v1.0.4 h1:mmDVorXM7PCGKw94cs5zkfA9PSy5pEvNWRP0ET0TIVo=
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github.com/matttproud/golang_protobuf_extensions v1.0.4/go.mod h1:BSXmuO+STAnVfrANrmjBb36TMTDstsz7MSK+HVaYKv4=
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github.com/maxbrunsfeld/counterfeiter/v6 v6.2.2/go.mod h1:eD9eIE7cdwcMi9rYluz88Jz2VyhSmden33/aXg4oVIY=
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github.com/miekg/dns v1.1.50 h1:DQUfb9uc6smULcREF09Uc+/Gd46YWqJd5DbpPE9xkcA=
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github.com/miekg/dns v1.1.50/go.mod h1:e3IlAVfNqAllflbibAZEWOXOQ+Ynzk/dDozDxY7XnME=
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github.com/miekg/pkcs11 v1.0.3/go.mod h1:XsNlhZGX73bx86s2hdc/FuaLm2CPZJemRLMA+WTFxgs=
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github.com/miekg/pkcs11 v1.1.1 h1:Ugu9pdy6vAYku5DEpVWVFPYnzV+bxB+iRdbuFSu7TvU=
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github.com/miekg/pkcs11 v1.1.1/go.mod h1:XsNlhZGX73bx86s2hdc/FuaLm2CPZJemRLMA+WTFxgs=
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@ -1009,8 +1011,8 @@ golang.org/x/crypto v0.0.0-20210322153248-0c34fe9e7dc2/go.mod h1:T9bdIzuCu7OtxOm
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golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
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golang.org/x/crypto v0.0.0-20211215153901-e495a2d5b3d3/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
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golang.org/x/crypto v0.0.0-20220622213112-05595931fe9d/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
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golang.org/x/crypto v0.12.0 h1:tFM/ta59kqch6LlvYnPa0yx5a83cL2nHflFhYKvv9Yk=
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golang.org/x/crypto v0.12.0/go.mod h1:NF0Gs7EO5K4qLn+Ylc+fih8BSTeIjAP05siRnAh98yw=
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golang.org/x/crypto v0.16.0 h1:mMMrFzRSCF0GvB7Ne27XVtVAaXLrPmgPC7/v0tkwHaY=
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golang.org/x/crypto v0.16.0/go.mod h1:gCAAfMLgwOJRpTjQ2zCCt2OcSfYMTeZVSRtQlPC7Nq4=
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golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
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golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
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golang.org/x/exp v0.0.0-20190510132918-efd6b22b2522/go.mod h1:ZjyILWgesfNpC6sMxTJOJm9Kp84zZh5NQWvqDGG3Qr8=
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@ -1086,6 +1088,7 @@ golang.org/x/net v0.0.0-20201224014010-6772e930b67b/go.mod h1:m0MpNAwzfU5UDzcl9v
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golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
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golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
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golang.org/x/net v0.0.0-20210421230115-4e50805a0758/go.mod h1:72T/g9IO56b78aLF+1Kcs5dz7/ng1VjMUvfKvpfy+jM=
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golang.org/x/net v0.0.0-20210726213435-c6fcb2dbf985/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
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golang.org/x/net v0.0.0-20210825183410-e898025ed96a/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
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golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
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golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
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@ -1184,6 +1187,7 @@ golang.org/x/sys v0.0.0-20210426230700-d19ff857e887/go.mod h1:h1NjWce9XRLGQEsW7w
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golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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golang.org/x/sys v0.0.0-20210616094352-59db8d763f22/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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golang.org/x/sys v0.0.0-20210906170528-6f6e22806c34/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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golang.org/x/sys v0.0.0-20211025201205-69cdffdb9359/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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golang.org/x/sys v0.0.0-20211116061358-0a5406a5449c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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@ -1195,12 +1199,12 @@ golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBc
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golang.org/x/sys v0.0.0-20220817070843-5a390386f1f2/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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golang.org/x/sys v0.0.0-20220823224334-20c2bfdbfe24/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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golang.org/x/sys v0.0.0-20220908164124-27713097b956/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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golang.org/x/sys v0.11.0 h1:eG7RXZHdqOJ1i+0lgLgCpSXAp6M3LYlAo6osgSi0xOM=
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golang.org/x/sys v0.11.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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golang.org/x/sys v0.15.0 h1:h48lPFYpsTvQJZF4EKyI4aLHaev3CxivZmv7yZig9pc=
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golang.org/x/sys v0.15.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
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golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
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golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
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golang.org/x/term v0.11.0 h1:F9tnn/DA/Im8nCwm+fX+1/eBwi4qFjRT++MhtVC4ZX0=
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golang.org/x/term v0.11.0/go.mod h1:zC9APTIj3jG3FdV/Ons+XE1riIZXG4aZ4GTHiPZJPIU=
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golang.org/x/term v0.15.0 h1:y/Oo/a/q3IXu26lQgl04j/gjuBDOBlx7X6Om1j2CPW4=
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golang.org/x/term v0.15.0/go.mod h1:BDl952bC7+uMoWR75FIrCDx79TPU9oHkTZ9yRbYOrX0=
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golang.org/x/text v0.0.0-20170915032832-14c0d48ead0c/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
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golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
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golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
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@ -1212,8 +1216,8 @@ golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
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golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
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golang.org/x/text v0.3.8/go.mod h1:E6s5w1FMmriuDzIBO73fBruAKo1PCIq6d2Q6DHfQ8WQ=
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golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
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golang.org/x/text v0.12.0 h1:k+n5B8goJNdU7hSvEtMUz3d1Q6D/XW4COJSJR6fN0mc=
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golang.org/x/text v0.12.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
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golang.org/x/text v0.14.0 h1:ScX5w1eTa3QqT8oi6+ziP7dTV1S2+ALU0bI+0zXKWiQ=
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golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
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golang.org/x/time v0.0.0-20180412165947-fbb02b2291d2/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
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golang.org/x/time v0.0.0-20181108054448-85acf8d2951c/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
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golang.org/x/time v0.0.0-20190308202827-9d24e82272b4/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
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@ -1270,6 +1274,7 @@ golang.org/x/tools v0.0.0-20200619180055-7c47624df98f/go.mod h1:EkVYQZoAsY45+roY
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golang.org/x/tools v0.0.0-20200916195026-c9a70fc28ce3/go.mod h1:z6u4i615ZeAfBE4XtMziQW1fSVJXACjjbWkB/mvPzlU=
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golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
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golang.org/x/tools v0.1.1/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
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golang.org/x/tools v0.1.6-0.20210726203631-07bc1bf47fb2/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
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golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
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golang.org/x/tools v0.12.0 h1:YW6HUoUmYBpwSgyaGaZq1fHjrBjX1rlpZ54T6mu2kss=
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golang.org/x/tools v0.12.0/go.mod h1:Sc0INKfu04TlqNoRA1hgpFZbhYXHPr4V5DzpSBTPqQM=
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@ -44,10 +44,18 @@ const (
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ConfigFileDefault = "/etc/ccl.toml" // ConfigFileDefault is default configuration file path
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)
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type GlobalOptions struct {
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DNSServer string `toml:"dns_server,omitempty"`
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TSIGName string `toml:"tsig_name,omitempty"`
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TSIGKey string `toml:"tsig_key,omitempty"`
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DomainName string `toml:"domain_name,omitempty"`
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}
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var (
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ConfigFile = ConfigFileDefault // ConfigFile is the path to the configuration file to use in a particular invocation.
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Networks = []*network.Network{} // Networks is the program-global set of congiured network.Networks structures
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Containers = []*container.Container{} // Containers is the program-global set of configured container.Container structures.
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Options = new(GlobalOptions) // Options contains global options, mostly pertaining to dns updates now
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)
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// Categories returns a slice of all of the distinct categories found in the
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@ -139,8 +147,9 @@ func UnionNetworks(ids []string) []*network.Network {
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func Init(conn context.Context) error {
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// A parsing convenience
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type parse struct {
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Networks []*network.Network
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Containers []*container.Container
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Networks []*network.Network `toml:"networks"`
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Containers []*container.Container `toml:"containers"`
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Options *GlobalOptions `toml:"options"`
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}
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f, err := os.ReadFile(ConfigFile)
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@ -152,7 +161,7 @@ func Init(conn context.Context) error {
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if err != nil {
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return err
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}
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Containers, Networks = p.Containers, p.Networks
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Containers, Networks, Options = p.Containers, p.Networks, p.Options
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for i := range Containers {
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Containers[i].Init(conn, Networks)
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}
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149
internal/pkg/container/nsupdate.go
Normal file
149
internal/pkg/container/nsupdate.go
Normal file
@ -0,0 +1,149 @@
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package container
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import (
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"net"
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"time"
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cmd "gitea.elkins.co/Networking/ccl/internal/pkg/command"
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"github.com/miekg/dns"
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)
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func do_reverse(rv string, dn string, server string, tsn string, tsk string) error {
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ptr := dns.PTR{
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Hdr: dns.RR_Header{
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Name: rv,
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Rrtype: dns.TypePTR,
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Class: dns.ClassINET,
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Ttl: 7200,
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},
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Ptr: dn,
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}
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cli := new(dns.Client)
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if tsn != "" {
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cli.TsigSecret = map[string]string{tsn: tsk}
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}
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msg := new(dns.Msg)
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msg.SetQuestion(rv, dns.TypeSOA)
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resp, _, err := cli.Exchange(msg, server)
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if err != nil {
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return err
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}
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soa := resp.Ns[0].Header().Name
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// Update the reverse record
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msg = new(dns.Msg)
|
||||
msg.SetUpdate(soa)
|
||||
msg.Ns = append(msg.Ns, &ptr)
|
||||
if tsn != "" {
|
||||
msg.SetTsig(tsn, dns.HmacSHA256, 300, time.Now().Unix())
|
||||
}
|
||||
_, _, err = cli.Exchange(msg, server)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (c *Container) NsUpdateCommands(forward_domain string, server string, tsn string, tsk string) cmd.Set {
|
||||
hostname := c.Hostname
|
||||
if c.Hostname == "" {
|
||||
hostname = c.Name
|
||||
}
|
||||
dn := dns.Fqdn(hostname + "." + forward_domain)
|
||||
cmds := []cmd.Command{}
|
||||
|
||||
// TODO: also iterate over c.IPv6Addresses
|
||||
for i := range c.Networks {
|
||||
n := &c.Networks[i]
|
||||
if n.IPv6.Bool && !n.IPv6Address.IsUnspecified() {
|
||||
ad := net.ParseIP(n.IPv6Address.String())
|
||||
if ad != nil {
|
||||
f_6 := func() error {
|
||||
aaaa := dns.AAAA{
|
||||
Hdr: dns.RR_Header{
|
||||
Name: dn,
|
||||
Rrtype: dns.TypeAAAA,
|
||||
Class: dns.ClassINET,
|
||||
Ttl: 7200,
|
||||
},
|
||||
AAAA: ad,
|
||||
}
|
||||
|
||||
rv, err := dns.ReverseAddr(aaaa.AAAA.String())
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
cli := new(dns.Client)
|
||||
if tsn != "" {
|
||||
cli.TsigSecret = map[string]string{tsn: tsk}
|
||||
}
|
||||
|
||||
// Update the forward record
|
||||
msg := new(dns.Msg)
|
||||
msg.SetUpdate(dns.Fqdn(forward_domain))
|
||||
msg.Ns = append(msg.Ns, &aaaa)
|
||||
|
||||
if tsn != "" {
|
||||
msg.SetTsig(tsn, dns.HmacSHA256, 300, time.Now().Unix())
|
||||
}
|
||||
if _, _, err = cli.Exchange(msg, server); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
if err = do_reverse(rv, dn, server, tsn, tsk); err != nil {
|
||||
return err
|
||||
}
|
||||
return nil
|
||||
}
|
||||
cmds = append(cmds, cmd.NewFunc("nsupate6", f_6))
|
||||
}
|
||||
}
|
||||
if !n.IPv4Address.IsUnspecified() {
|
||||
ad := net.ParseIP(n.IPv4Address.String())
|
||||
if ad != nil {
|
||||
f_4 := func() error {
|
||||
a := dns.A{
|
||||
Hdr: dns.RR_Header{
|
||||
Name: dn,
|
||||
Rrtype: dns.TypeA,
|
||||
Class: dns.ClassINET,
|
||||
Ttl: 7200,
|
||||
},
|
||||
A: ad,
|
||||
}
|
||||
|
||||
rv, err := dns.ReverseAddr(a.A.String())
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
cli := new(dns.Client)
|
||||
if tsn != "" {
|
||||
cli.TsigSecret = map[string]string{tsn: tsk}
|
||||
}
|
||||
|
||||
// Update the forward record
|
||||
msg := new(dns.Msg)
|
||||
msg.SetUpdate(dns.Fqdn(forward_domain))
|
||||
msg.Ns = append(msg.Ns, &a)
|
||||
if tsn != "" {
|
||||
msg.SetTsig(tsn, dns.HmacSHA256, 300, time.Now().Unix())
|
||||
}
|
||||
if _, _, err = cli.Exchange(msg, server); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
if err = do_reverse(rv, dn, server, tsn, tsk); err != nil {
|
||||
return err
|
||||
}
|
||||
return nil
|
||||
}
|
||||
cmds = append(cmds, cmd.NewFunc("nsupate4", f_4))
|
||||
}
|
||||
}
|
||||
}
|
||||
return c.newCommandSet("NSUPDATE", cmds)
|
||||
}
|
||||
Loading…
x
Reference in New Issue
Block a user