diff --git a/README.md b/README.md index 88314fbf..369c284a 100644 --- a/README.md +++ b/README.md @@ -154,6 +154,10 @@ Available Upstream Drivers Database upstream driver connected to popular databases, such as mysql, pg or sqlite etc to provide upstream's information. + * [Kubernetes Driver](sshpiperd/upstream/kubernetes/README.md) + + Kubernetes drive can configure pipe with CRD. + #### How to do public key authentication when using sshpiper During SSH publickey auth, [RFC 4252 Section 7](http://tools.ietf.org/html/rfc4252#section-7), diff --git a/go.mod b/go.mod index 3c2d3408..2d4d057d 100644 --- a/go.mod +++ b/go.mod @@ -21,14 +21,24 @@ require ( github.com/gojektech/valkyrie v0.0.0-20190210220504-8f62c1e7ba45 // indirect github.com/gokyle/sshkey v0.0.0-20131202145224-d32a9ef172a1 github.com/google/uuid v1.1.2 + github.com/googleapis/gnostic v0.5.5 // indirect github.com/jessevdk/go-flags v1.4.0 github.com/jinzhu/gorm v1.9.16 + github.com/json-iterator/go v1.1.11 // indirect github.com/lib/pq v1.5.2 // indirect github.com/mattn/go-sqlite3 v2.0.3+incompatible // indirect github.com/msteinert/pam v0.0.0-20190215180659-f29b9f28d6f9 - github.com/pkg/errors v0.9.1 // indirect + github.com/pockost/sshpipe-k8s-lib v0.0.3 + github.com/stretchr/testify v1.7.0 // indirect github.com/tg123/sshkey v0.0.0-20201202190454-3bb356f89f1f - golang.org/x/crypto v0.0.0-20201124201722-c8d3bf9c5392 - golang.org/x/sys v0.0.0-20200513112337-417ce2331b5c // indirect - gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776 + golang.org/x/crypto v0.0.0-20210220033148-5ea612d1eb83 + golang.org/x/net v0.0.0-20210428140749-89ef3d95e781 // indirect + golang.org/x/sys v0.0.0-20210603081109-ebe580a85c40 // indirect + google.golang.org/appengine v1.6.7 // indirect + gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b + k8s.io/apimachinery v0.21.1 + k8s.io/client-go v0.21.1 + k8s.io/utils v0.0.0-20210527160623-6fdb442a123b // indirect ) + +replace k8s.io/client-go => k8s.io/client-go v0.21.1 diff --git a/go.sum b/go.sum index b0ca7c8f..9c7fef86 100644 --- a/go.sum +++ b/go.sum @@ -1,3 +1,26 @@ +cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= +cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= +cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU= +cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU= +cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY= +cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc= +cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0= +cloud.google.com/go v0.50.0/go.mod h1:r9sluTvynVuxRIOHXQEHMFffphuXHOMZMycpNR5e6To= +cloud.google.com/go v0.52.0/go.mod h1:pXajvRH/6o3+F9jDHZWQ5PbGhn+o8w9qiu/CffaVdO4= +cloud.google.com/go v0.53.0/go.mod h1:fp/UouUEsRkN6ryDKNW/Upv/JBKnv6WDthjR6+vze6M= +cloud.google.com/go v0.54.0/go.mod h1:1rq2OEkV3YMf6n/9ZvGWI3GWw0VoqH/1x2nd8Is/bPc= +cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o= +cloud.google.com/go/bigquery v1.3.0/go.mod h1:PjpwJnslEMmckchkHFfq+HTD2DmtT67aNFKH1/VBDHE= +cloud.google.com/go/bigquery v1.4.0/go.mod h1:S8dzgnTigyfTmLBfrtrhyYhwRxG72rYxvftPBK2Dvzc= +cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE= +cloud.google.com/go/datastore v1.1.0/go.mod h1:umbIZjpQpHh4hmRpGhH4tLFup+FVzqBi1b3c64qFpCk= +cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I= +cloud.google.com/go/pubsub v1.1.0/go.mod h1:EwwdRX2sKPjnvnqCa270oGRyludottCI76h+R3AArQw= +cloud.google.com/go/pubsub v1.2.0/go.mod h1:jhfEVHT8odbXTkndysNHCcx0awwzvfOlguIAii9o8iA= +cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiyrjsg+URw= +cloud.google.com/go/storage v1.5.0/go.mod h1:tpKbwo567HUNpVclU5sGELwQWBDZ8gh0ZeosJ0Rtdos= +cloud.google.com/go/storage v1.6.0/go.mod h1:N7U0C8pVQ/+NIKOBQyamJIeKQKkZ+mxpohlUTyfDhBk= +dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU= github.com/Azure/azure-sdk-for-go v49.0.0+incompatible h1:rvYYNgKNBwoxUaBFmd/+TpW3qrd805EHBBvUp5FmFso= github.com/Azure/azure-sdk-for-go v49.0.0+incompatible/go.mod h1:9XXNKU+eRnpl9moKnB4QOLf1HestfXbmab5FXxiDBjc= github.com/Azure/go-autorest v14.2.0+incompatible h1:V5VMDjClD3GiElqLWO7mz2MxNAK/vTfRHdAubSIPRgs= @@ -28,12 +51,26 @@ github.com/Azure/go-autorest/tracing v0.5.0 h1:TRn4WjSnkcSy5AEG3pnbtFSwNtwzjr4VY github.com/Azure/go-autorest/tracing v0.5.0/go.mod h1:r/s2XiOKccPW3HrqB+W0TQzfbtp2fGCgRFtBroKn4Dk= github.com/Azure/go-autorest/tracing v0.6.0 h1:TYi4+3m5t6K48TGI9AUdb+IzbnSxvnvUMfuitfgcfuo= github.com/Azure/go-autorest/tracing v0.6.0/go.mod h1:+vhtPC754Xsa23ID7GlGsrdKBpUA79WCAKPPZVC2DeU= +github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= +github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo= +github.com/NYTimes/gziphandler v0.0.0-20170623195520-56545f4a5d46/go.mod h1:3wb06e3pkSAbeQ52E9H9iFoQsEEwGN64994WTCIhntQ= github.com/PuerkitoBio/goquery v1.5.1/go.mod h1:GsLWisAFVj4WgDibEWF4pvYnkVQBpKBKeU+7zCJoLcc= +github.com/PuerkitoBio/purell v1.1.1/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbtSwDGJws/X0= +github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578/go.mod h1:uGdkoq3SwY9Y+13GIhn11/XLaGBb4BfwItxLd5jeuXE= github.com/andybalholm/cascadia v1.1.0/go.mod h1:GsXiBklL0woXo1j/WYWtSYYC4ouU9PqHO0sqidkEA4Y= +github.com/asaskevich/govalidator v0.0.0-20190424111038-f61b66f89f4a/go.mod h1:lB+ZfQJz7igIIfQNfa7Ml4HSf2uFQQRzpGGRXenZAgY= github.com/bgentry/speakeasy v0.1.0 h1:ByYyxL9InA1OWqxJqqp2A5pYHUrCiAL6K3J+LKSsQkY= github.com/bgentry/speakeasy v0.1.0/go.mod h1:+zsyZBPWlz7T6j88CTgSN5bM796AkVf0kBD4zp0CCIs= +github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU= +github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI= +github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI= +github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU= +github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw= +github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E= github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8= github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= +github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c= +github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= github.com/dcu/go-authy v1.0.1 h1:9LtF0otuGKQOD0AzyAUKzT+etvzGZxpvf4x20/xiW1Y= github.com/dcu/go-authy v1.0.1/go.mod h1:SJ8cuAYQ9c9ZGGIGNk5gyH87/Q0uJXzhb1DR8MNnn98= github.com/denisenkom/go-mssqldb v0.0.0-20191124224453-732737034ffd h1:83Wprp6ROGeiHFAP8WJdI2RoxALQYgdllERc3N5N2DM= @@ -42,12 +79,34 @@ github.com/denisenkom/go-mssqldb v0.0.0-20200428022330-06a60b6afbbc h1:VRRKCwnzq github.com/denisenkom/go-mssqldb v0.0.0-20200428022330-06a60b6afbbc/go.mod h1:xbL0rPBG9cCiLr28tMa8zpbdarY27NDyej4t/EjAShU= github.com/dgrijalva/jwt-go v3.2.0+incompatible h1:7qlOGliEKZXTDg6OTjfoBKDXWrumCAMpl/TFQ4/5kLM= github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZmtrrCbhqsmaPHjLKYnJCaQ= +github.com/docopt/docopt-go v0.0.0-20180111231733-ee0de3bc6815/go.mod h1:WwZ+bS3ebgob9U8Nd0kOddGdZWjyMGR8Wziv+TBNwSE= +github.com/elazarl/goproxy v0.0.0-20180725130230-947c36da3153/go.mod h1:/Zj4wYkgs4iZTTu3o/KG3Itv/qCCa8VVMlb3i9OVuzc= +github.com/emicklei/go-restful v0.0.0-20170410110728-ff4f55a20633/go.mod h1:otzb+WCGbkyDHkqmQmT5YD2WR4BBwUdeQoFo8l/7tVs= +github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4= +github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c= github.com/erikstmartin/go-testdb v0.0.0-20160219214506-8d10e4a1bae5 h1:Yzb9+7DPaBjB8zlTR87/ElzFsnQfuHnVUVqpZZIcV5Y= github.com/erikstmartin/go-testdb v0.0.0-20160219214506-8d10e4a1bae5/go.mod h1:a2zkGnVExMxdzMo3M0Hi/3sEU+cWnZpSni0O6/Yb/P0= +github.com/evanphx/json-patch v4.9.0+incompatible/go.mod h1:50XU6AFN0ol/bzJsmQLiYLvXMP4fmwYFNcr97nuDLSk= github.com/form3tech-oss/jwt-go v3.2.2+incompatible h1:TcekIExNqud5crz4xD2pavyTgWiPvpYe4Xau31I0PRk= github.com/form3tech-oss/jwt-go v3.2.2+incompatible/go.mod h1:pbq4aXjuKjdthFRnoDwaVPLA+WlJuPGy+QneDUgJi2k= +github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo= +github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU= +github.com/go-gl/glfw/v3.3/glfw v0.0.0-20191125211704-12ad95a8df72/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8= +github.com/go-gl/glfw/v3.3/glfw v0.0.0-20200222043503-6f7a984d4dc4/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8= +github.com/go-logr/logr v0.1.0/go.mod h1:ixOQHD9gLJUVQQ2ZOR7zLEifBX6tGkNJF4QyIY7sIas= +github.com/go-logr/logr v0.4.0 h1:K7/B1jt6fIBQVd4Owv2MqGQClcgf0R266+7C/QjRcLc= +github.com/go-logr/logr v0.4.0/go.mod h1:z6/tIYblkpsD+a4lm/fGIIU9mZ+XfAiaFtq7xTgseGU= +github.com/go-openapi/jsonpointer v0.19.2/go.mod h1:3akKfEdA7DF1sugOqz1dVQHBcuDBPKZGEoHC/NkiQRg= +github.com/go-openapi/jsonpointer v0.19.3/go.mod h1:Pl9vOtqEWErmShwVjC8pYs9cog34VGT37dQOVbmoatg= +github.com/go-openapi/jsonreference v0.19.2/go.mod h1:jMjeRr2HHw6nAVajTXJ4eiUwohSTlpa0o73RUL1owJc= +github.com/go-openapi/jsonreference v0.19.3/go.mod h1:rjx6GuL8TTa9VaixXglHmQmIL98+wF9xc8zWvFonSJ8= +github.com/go-openapi/spec v0.19.3/go.mod h1:FpwSN1ksY1eteniUU7X0N/BgJ7a4WvBFVA8Lj9mJglo= +github.com/go-openapi/swag v0.19.2/go.mod h1:POnQmlKehdgb5mhVOsnJFsivZCEZ/vjK9gh66Z9tfKk= +github.com/go-openapi/swag v0.19.5/go.mod h1:POnQmlKehdgb5mhVOsnJFsivZCEZ/vjK9gh66Z9tfKk= github.com/go-sql-driver/mysql v1.5.0 h1:ozyZYNQW3x3HtqT1jira07DN2PArx2v7/mN66gGcHOs= github.com/go-sql-driver/mysql v1.5.0/go.mod h1:DCzpHaOWr8IXmIStZouvnhqoel9Qv2LBy8hT2VhHyBg= +github.com/gogo/protobuf v1.3.2 h1:Ov1cvc58UF3b5XjBnZv7+opcTcQFZebYjWzi34vdm4Q= +github.com/gogo/protobuf v1.3.2/go.mod h1:P1XiOD3dCwIKUDQYPy72D8LYyHL2YPYrpS2s69NZV8Q= github.com/gojektech/heimdall v5.0.2+incompatible h1:mfGLnHNTKN7b1OMTO4ZvL3oT2P13kqTTV7owK7BZDck= github.com/gojektech/heimdall v5.0.2+incompatible/go.mod h1:8hRIZ3+Kz0r3GAFI9QrUuvZht8ypg5Rs8schCXioLOo= github.com/gojektech/valkyrie v0.0.0-20190210220504-8f62c1e7ba45 h1:MO2DsGCZz8phRhLnpFvHEQgTH521sVN/6F2GZTbNO3Q= @@ -56,49 +115,418 @@ github.com/gokyle/sshkey v0.0.0-20131202145224-d32a9ef172a1 h1:kECRseLny/LUFGIYn github.com/gokyle/sshkey v0.0.0-20131202145224-d32a9ef172a1/go.mod h1:cJmL4Lt4IYcCvRqqJa6j77P1Gc2Fghm4hOc5Bvi25yg= github.com/golang-sql/civil v0.0.0-20190719163853-cb61b32ac6fe h1:lXe2qZdvpiX5WZkZR4hgp4KJVfY3nMkvmwbVkpv1rVY= github.com/golang-sql/civil v0.0.0-20190719163853-cb61b32ac6fe/go.mod h1:8vg3r2VgvsThLBIFL93Qb5yWzgyZWhEmBwUJWevAkK0= +github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q= +github.com/golang/groupcache v0.0.0-20190702054246-869f871628b6/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc= +github.com/golang/groupcache v0.0.0-20191227052852-215e87163ea7/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc= +github.com/golang/groupcache v0.0.0-20200121045136-8c9f03a8e57e h1:1r7pUrabqp18hOBcwBwiTsbnFeTZHV9eER/QT5JVZxY= +github.com/golang/groupcache v0.0.0-20200121045136-8c9f03a8e57e/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc= +github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A= +github.com/golang/mock v1.2.0/go.mod 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"github.com/tg123/sshpiper/sshpiperd/upstream/kubernetes" _ "github.com/tg123/sshpiper/sshpiperd/challenger/authy" _ "github.com/tg123/sshpiper/sshpiperd/challenger/azdevicecode" diff --git a/sshpiperd/upstream/kubernetes/README.md b/sshpiperd/upstream/kubernetes/README.md new file mode 100644 index 00000000..d729b85b --- /dev/null +++ b/sshpiperd/upstream/kubernetes/README.md @@ -0,0 +1,79 @@ +# Kubernetes upstream for SSHPiper + +Kubernetes api is called to retreive sshpiper configuration. + +## Usage + +First install CRD + +``` +$ kubectl apply -f https://raw.githubusercontent.com/pockost/sshpipe-k8s-lib/v0.0.3/artifacts/sshpipe.yaml +``` + +You can now add a new sshpipe object + +``` +apiVersion: pockost.com/v1beta1 +kind: SshPipe +metadata: + name: sftp2 +spec: + users: + - user2 + target: + name: sftp2 +``` + +You can find more example in [the example folder](sshpiperd/kubernetes/example) + +## ssh host key + +If the `/etc/ssh/ssh_host_rsa_key` does not exist at startup the +sshpiper container generate one. This mean each time the `sshpiper` pod +is recreated a new `ssh_host_rsa_key` will be generated. + +To prevent this you can generate a new `ssh_host_rsa_key` and store this +one in a Secret object. + +``` +$ docker run --rm farmer1992/sshpiperd /sshpiperd genkey > ssh_host_rsa_key +$ kubectl -n sshpiper create secret generic sshpiper --from-file ssh_host_rsa_key +``` + +You can now inject this secret in /etc/ssh/ssh_host_rsa_key. + +``` +apiVersion: apps/v1 +kind: Deployment +metadata: + name: sshpiper + namespace: sshpiper +spec: + replicas: 1 + selector: + matchLabels: + app: sshpiper + template: + metadata: + labels: + app: sshpiper + spec: + serviceAccountName: sshpiper + containers: + - name: sshpiper + image: lermit/sshpiper + imagePullPolicy: Always + env: + - name: SSHPIPERD_UPSTREAM_DRIVER + value: kubernetes + volumeMounts: + - name: secrets + mountPath: /etc/ssh/ssh_host_rsa_key + subPath: ssh_host_rsa_key + volumes: + - name: secrets + secret: + secretName: sshpiper +``` + +**Note**: You can uncomment corresponding line in the example folder. diff --git a/sshpiperd/upstream/kubernetes/TODO b/sshpiperd/upstream/kubernetes/TODO new file mode 100644 index 00000000..0cac772c --- /dev/null +++ b/sshpiperd/upstream/kubernetes/TODO @@ -0,0 +1,4 @@ +* Permit connection with KUBECONFIG env var +* Detect port from service +* Use Watch in order to subscribe to SshPipe CRD change in order to reduce api call +* Create helm chart diff --git a/sshpiperd/upstream/kubernetes/crd.yaml b/sshpiperd/upstream/kubernetes/crd.yaml new file mode 100644 index 00000000..243f4e79 --- /dev/null +++ b/sshpiperd/upstream/kubernetes/crd.yaml @@ -0,0 +1,75 @@ +apiVersion: apiextensions.k8s.io/v1 +kind: CustomResourceDefinition +metadata: + # name must match the spec fields below, and be in the form: . + name: sshpipes.pockost.com +spec: + # group name to use for REST API: /apis// + group: pockost.com + # list of versions supported by this CustomResourceDefinition + versions: + - name: v1beta1 + # Each version can be enabled/disabled by Served flag. + served: true + # One and only one version must be marked as the storage version. + storage: true + additionalPrinterColumns: + - jsonPath: .spec.users + name: Users + type: string + - jsonPath: .spec.target.name + name: Service + type: string + - jsonPath: .metadata.creationTimestamp + description: CreationTimestamp is a timestamp representing the server time when this object was created. It is not guaranteed to be set in happens-before order across separate operations. Clients may not set this value. It is represented in RFC3339 form and is in UTC. + name: Age + type: date + schema: + openAPIV3Schema: + description: Sshpipe is a pipe configuration for sshpipe + type: object + required: + - metadata + - spec + properties: + apiVersion: + description: 'APIVersion defines the versioned schema of this representation of an object. Servers should convert recognized schemas to the latest internal value, and may reject unrecognized values. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources' + type: string + kind: + description: 'Kind is a string value representing the REST resource this object represents. Servers may infer this from the endpoint the client submits requests to. Cannot be updated. In CamelCase. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds' + type: string + metadata: + type: object + spec: + type: object + required: + - users + - target + properties: + users: + description: list of users that should be routed to selected target service. + type: array + items: + type: string + target: + description: service to route ssh/sftp connection to. + type: object + required: + - name + properties: + name: + description: The service name + type: string + port: + description: The service port + type: integer + default: 22 + # either Namespaced or Cluster + scope: Namespaced + names: + # plural name to be used in the URL: /apis/// + plural: sshpipes + # singular name to be used as an alias on the CLI and for display + singular: sshpipe + # kind is normally the CamelCased singular type. Your resource manifests use this. + kind: SshPipe diff --git a/sshpiperd/upstream/kubernetes/example/deploy-stfp.yml b/sshpiperd/upstream/kubernetes/example/deploy-stfp.yml new file mode 100644 index 00000000..ccae479a --- /dev/null +++ b/sshpiperd/upstream/kubernetes/example/deploy-stfp.yml @@ -0,0 +1,118 @@ +--- +apiVersion: apps/v1 +kind: Deployment +metadata: + name: sftp1 +spec: + replicas: 1 + selector: + matchLabels: + app: sftp1 + template: + metadata: + labels: + app: sftp1 + spec: + containers: + - name: sftp + image: atmoz/sftp + volumeMounts: + - name: data + mountPath: /home/user1/ + args: + - "user1:pass" + volumes: + - name: data + persistentVolumeClaim: + claimName: sftp1-data +--- +apiVersion: v1 +kind: PersistentVolumeClaim +metadata: + name: sftp1-data +spec: + accessModes: + - ReadWriteOnce + resources: + requests: + # The amount of the volume's storage to request + storage: 1Gi +--- +apiVersion: v1 +kind: Service +metadata: + name: sftp1 +spec: + ports: + - port: 22 + selector: + app: sftp1 +--- +apiVersion: pockost.com/v1beta1 +kind: SshPipe +metadata: + name: sftp1 +spec: + users: + - user1 + target: + name: sftp1 +--- +apiVersion: apps/v1 +kind: Deployment +metadata: + name: sftp2 +spec: + replicas: 1 + selector: + matchLabels: + app: sftp2 + template: + metadata: + labels: + app: sftp2 + spec: + containers: + - name: sftp + image: atmoz/sftp + volumeMounts: + - name: data + mountPath: /home/user2/ + args: + - "user2:pass" + volumes: + - name: data + persistentVolumeClaim: + claimName: sftp2-data +--- +apiVersion: v1 +kind: PersistentVolumeClaim +metadata: + name: sftp2-data +spec: + accessModes: + - ReadWriteOnce + resources: + requests: + # The amount of the volume's storage to request + storage: 1Gi +--- +apiVersion: v1 +kind: Service +metadata: + name: sftp2 +spec: + ports: + - port: 22 + selector: + app: sftp2 +--- +apiVersion: pockost.com/v1beta1 +kind: SshPipe +metadata: + name: sftp2 +spec: + users: + - user2 + target: + name: sftp2 diff --git a/sshpiperd/upstream/kubernetes/example/sshpiper.yaml b/sshpiperd/upstream/kubernetes/example/sshpiper.yaml new file mode 100644 index 00000000..b7a6f37a --- /dev/null +++ b/sshpiperd/upstream/kubernetes/example/sshpiper.yaml @@ -0,0 +1,80 @@ +--- +apiVersion: v1 +kind: Namespace +metadata: + name: sshpiper +--- +apiVersion: apps/v1 +kind: Deployment +metadata: + name: sshpiper + namespace: sshpiper +spec: + replicas: 1 + selector: + matchLabels: + app: sshpiper + template: + metadata: + labels: + app: sshpiper + spec: + serviceAccountName: sshpiper + containers: + - name: sshpiper + image: lermit/sshpiper + imagePullPolicy: Always + env: + - name: SSHPIPERD_UPSTREAM_DRIVER + value: kubernetes +# volumeMounts: +# - name: secrets +# mountPath: /etc/ssh/ssh_host_rsa_key +# subPath: ssh_host_rsa_key +# volumes: +# - name: secrets +# secret: +# secretName: sshpiper +--- +apiVersion: v1 +kind: Service +metadata: + name: sshpiper + namespace: sshpiper +spec: + type: LoadBalancer + ports: + - port: 2222 + targetPort: 2222 + selector: + app: sshpiper +--- +apiVersion: v1 +kind: ServiceAccount +metadata: + name: sshpiper + namespace: sshpiper +--- +kind: ClusterRole +apiVersion: rbac.authorization.k8s.io/v1 +metadata: + name: sshpiper + namespace: sshpiper +rules: +- apiGroups: ["pockost.com"] + resources: ["sshpipes"] + verbs: ["watch", "get", "list"] +--- +# This role binding allows "jane" to read pods in the "default" namespace. +kind: ClusterRoleBinding +apiVersion: rbac.authorization.k8s.io/v1 +metadata: + name: sshpiper +subjects: +- kind: ServiceAccount + name: sshpiper + namespace: sshpiper +roleRef: + kind: ClusterRole #this must be Role or ClusterRole + name: sshpiper + apiGroup: rbac.authorization.k8s.io diff --git a/sshpiperd/upstream/kubernetes/kubernetes.go b/sshpiperd/upstream/kubernetes/kubernetes.go new file mode 100644 index 00000000..87d2f5d6 --- /dev/null +++ b/sshpiperd/upstream/kubernetes/kubernetes.go @@ -0,0 +1,137 @@ +package kubernetes + +import ( + "context" + "fmt" + "net" + //"path/filepath" + //"strings" + + "github.com/tg123/sshpiper/sshpiperd/upstream" + "golang.org/x/crypto/ssh" + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/client-go/rest" + //"k8s.io/client-go/util/homedir" + //"k8s.io/client-go/tools/clientcmd" + sshpipeclientset "github.com/pockost/sshpipe-k8s-lib/pkg/client/clientset/versioned" +) + +type pipeConfig struct { + Username string `kubernetes:"username"` + UpstreamHost string `kubernetes:"upstream_host"` +} + +type createPipeCtx struct { + pipe pipeConfig + conn ssh.ConnMetadata + challengeContext ssh.AdditionalChallengeContext +} + +func (p *plugin) getClientSet() (*sshpipeclientset.Clientset, error) { + /* + var kubeconfig string + home := homedir.HomeDir() + kubeconfig = filepath.Join(home, ".kube", "config") + + // use the current context in kubeconfig + config, err := clientcmd.BuildConfigFromFlags("", kubeconfig) + if err != nil { + return nil, err + } + */ + config, err := rest.InClusterConfig() + if err != nil { + return nil, err + } + + // create the clientset + clientset, err := sshpipeclientset.NewForConfig(config) + if err != nil { + return nil, err + } + + return clientset, nil +} + +func (p *plugin) getConfig(clientset *sshpipeclientset.Clientset) ([]pipeConfig, error) { + listOptions := metav1.ListOptions{} + + pipes, err := clientset.PockostV1beta1().SshPipes("").List(context.TODO(), listOptions) + if err != nil { + return nil, err + } + + if err != nil { + return nil, err + } + + var config []pipeConfig + for _, pipe := range pipes.Items { + var targetHost string + targetHost = fmt.Sprintf("%s.%s", pipe.Spec.Target.Name, pipe.ObjectMeta.Namespace) + + for _, username := range pipe.Spec.Users { + config = append( + config, + pipeConfig{ + Username: username, + UpstreamHost: targetHost, + }, + ) + } + } + + return config, nil +} + +func (p *plugin) createAuthPipe(pipe pipeConfig, conn ssh.ConnMetadata, challengeContext ssh.AdditionalChallengeContext) (*ssh.AuthPipe, error) { + hostKeyCallback := ssh.InsecureIgnoreHostKey() + + a := &ssh.AuthPipe{ + User: pipe.Username, + UpstreamHostKeyCallback: hostKeyCallback, + } + + a.PasswordCallback = func(conn ssh.ConnMetadata, password []byte) (ssh.AuthPipeType, ssh.AuthMethod, error) { + return ssh.AuthPipeTypePassThrough, nil, nil + } + + return a, nil +} + +func (p *plugin) findUpstream(conn ssh.ConnMetadata, challengeContext ssh.AdditionalChallengeContext) (net.Conn, *ssh.AuthPipe, error) { + user := conn.User() + + clientset, err := p.getClientSet() + if err != nil { + return nil, nil, err + } + + // Get config from k8s + config, err := p.getConfig(clientset) + if err != nil { + return nil, nil, err + } + + // Retreive corresponding configuration + for _, pipe := range config { + matched := pipe.Username == user + + if matched { + c, err := upstream.DialForSSH(pipe.UpstreamHost) + if err != nil { + return nil, nil, err + } + + a, err := p.createAuthPipe(pipe, conn, challengeContext) + if err != nil { + return nil, nil, err + } + + p.logger.Printf("Forwarding connection to [%v] for user [%v]", pipe.UpstreamHost, pipe.Username) + return c, a, nil + } + } + + return nil, nil, fmt.Errorf("username not [%v] found", user) +} diff --git a/sshpiperd/upstream/kubernetes/pipemgr.go b/sshpiperd/upstream/kubernetes/pipemgr.go new file mode 100644 index 00000000..d5988364 --- /dev/null +++ b/sshpiperd/upstream/kubernetes/pipemgr.go @@ -0,0 +1,23 @@ +package kubernetes + +import ( + "github.com/tg123/sshpiper/sshpiperd/upstream" +) + +// Return All pipes inside upstream +func (p *plugin) ListPipe() ([]upstream.Pipe, error) { + + var pipes []upstream.Pipe + + return pipes, nil +} + +// Create a pipe inside upstream +func (p *plugin) CreatePipe(opt upstream.CreatePipeOption) error { + return nil +} + +// Remove a pipe from upstream +func (p *plugin) RemovePipe(name string) error { + return nil +} diff --git a/sshpiperd/upstream/kubernetes/plugin.go b/sshpiperd/upstream/kubernetes/plugin.go new file mode 100644 index 00000000..627b1e88 --- /dev/null +++ b/sshpiperd/upstream/kubernetes/plugin.go @@ -0,0 +1,39 @@ +package kubernetes + +import ( + "log" + + "github.com/tg123/sshpiper/sshpiperd/upstream" +) + +type plugin struct { + Config struct { + } + + logger *log.Logger +} + +// The name of the Plugin +func (p *plugin) GetName() string { + return "kubernetes" +} + +// A ref to a struct which holds the options for the plugins +// will be populated by cmd or other plugin runners +func (p *plugin) GetOpts() interface{} { + return &p.Config +} + +// Will be called before the Plugin is used to ensure the Plugin is ready +func (p *plugin) Init(logger *log.Logger) error { + p.logger = logger + return nil +} + +func (p *plugin) GetHandler() upstream.Handler { + return p.findUpstream +} + +func init() { + upstream.Register("kubernetes", &plugin{}) +}