(#53) Support upgrading choria servers using go-updater

Signed-off-by: R.I.Pienaar <rip@devco.net>

config/config.go

@@ -42,11 +42,14 @@ type Config struct {
 	ServerJWTValidity       string   `json:"server_jwt_validity"`
 	RegoPolicy              string   `json:"rego_policy"`
 	LeaderElection          bool     `json:"leader_election"`
+	UpgradesRepo            string   `json:"upgrades_repository"`
+	UpgradesOptional        bool     `json:"upgrades_optional"`
 
 	Features struct {
-		PKI     bool `json:"pki"`
-		JWT     bool `json:"jwt"`
-		ED25519 bool `json:"ed25519"`
+		PKI             bool `json:"pki"`
+		JWT             bool `json:"jwt"`
+		ED25519         bool `json:"ed25519"`
+		VersionUpgrades bool `json:"upgrades"`
 	} `json:"features"`
 
 	ServerJWTValidityDuration time.Duration `json:"-"`

go.mod

@@ -4,7 +4,7 @@ go 1.18
 
 require (
 	github.com/choria-io/fisk v0.2.1
-	github.com/choria-io/go-choria v0.26.3-0.20221129123436-fc8626c4a1e9
+	github.com/choria-io/go-choria v0.26.3-0.20221129181538-466f607cd13b
 	github.com/ghodss/yaml v1.0.0
 	github.com/onsi/ginkgo/v2 v2.5.1
 	github.com/onsi/gomega v1.24.1
@@ -15,96 +15,56 @@ require (
 require (
 	github.com/AlecAivazis/survey/v2 v2.3.6 // indirect
 	github.com/Freman/eventloghook v0.0.0-20191003051739-e4d803b6b48b // indirect
-	github.com/HdrHistogram/hdrhistogram-go v1.1.2 // indirect
-	github.com/Masterminds/goutils v1.1.1 // indirect
 	github.com/Masterminds/semver v1.5.0 // indirect
-	github.com/Masterminds/semver/v3 v3.1.1 // indirect
-	github.com/Masterminds/sprig/v3 v3.2.2 // indirect
 	github.com/OneOfOne/xxhash v1.2.8 // indirect
-	github.com/achanda/go-sysctl v0.0.0-20160222034550-6be7678c45d2 // indirect
-	github.com/adrg/xdg v0.4.0 // indirect
-	github.com/aelsabbahy/GOnetstat v0.0.0-20220505220511-31d79a98d9f2 // indirect
-	github.com/aelsabbahy/go-ps v0.0.0-20201009164808-61c449472dcf // indirect
-	github.com/aelsabbahy/goss v0.3.21-0.20221028222348-e566d708ffde // indirect
 	github.com/agnivade/levenshtein v1.1.1 // indirect
 	github.com/antonmedv/expr v1.9.0 // indirect
-	github.com/awesome-gocui/gocui v1.1.0 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
-	github.com/blang/semver/v4 v4.0.0 // indirect
 	github.com/cespare/xxhash/v2 v2.1.2 // indirect
-	github.com/cheekybits/genny v1.0.0 // indirect
-	github.com/choria-io/appbuilder v0.4.0 // indirect
 	github.com/choria-io/go-updater v0.1.0 // indirect
-	github.com/choria-io/goform v0.0.2 // indirect
 	github.com/cloudevents/sdk-go/v2 v2.12.0 // indirect
 	github.com/dustin/go-humanize v1.0.0 // indirect
-	github.com/emicklei/dot v1.1.0 // indirect
 	github.com/fatih/color v1.13.0 // indirect
-	github.com/fatih/structtag v1.2.0 // indirect
-	github.com/gdamore/encoding v1.0.0 // indirect
-	github.com/gdamore/tcell/v2 v2.5.3 // indirect
 	github.com/go-logr/logr v1.2.3 // indirect
-	github.com/go-task/slim-sprig v0.0.0-20210107165309-348f09dbbbc0 // indirect
 	github.com/gobwas/glob v0.2.3 // indirect
 	github.com/gofrs/uuid v4.3.1+incompatible // indirect
 	github.com/golang-jwt/jwt/v4 v4.4.2 // indirect
 	github.com/golang/mock v1.6.0 // indirect
 	github.com/golang/protobuf v1.5.2 // indirect
 	github.com/google/go-cmp v0.5.9 // indirect
-	github.com/google/pprof v0.0.0-20221112000123-84eb7ad69597 // indirect
 	github.com/google/shlex v0.0.0-20191202100458-e7afc7fbc510 // indirect
 	github.com/google/uuid v1.3.0 // indirect
 	github.com/gosuri/uilive v0.0.4 // indirect
 	github.com/gosuri/uiprogress v0.0.1 // indirect
 	github.com/guptarohit/asciigraph v0.5.5 // indirect
-	github.com/huandu/xstrings v1.3.3 // indirect
-	github.com/imdario/mergo v0.3.13 // indirect
-	github.com/itchyny/gojq v0.12.9 // indirect
-	github.com/itchyny/timefmt-go v0.1.4 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51 // indirect
 	github.com/klauspost/compress v1.15.12 // indirect
 	github.com/kr/pretty v0.3.0 // indirect
 	github.com/looplab/fsm v0.3.0 // indirect
-	github.com/lucasb-eyer/go-colorful v1.2.0 // indirect
 	github.com/mattn/go-colorable v0.1.13 // indirect
 	github.com/mattn/go-isatty v0.0.16 // indirect
-	github.com/mattn/go-runewidth v0.0.14 // indirect
 	github.com/matttproud/golang_protobuf_extensions v1.0.4 // indirect
 	github.com/mgutz/ansi v0.0.0-20200706080929-d51e80ef957d // indirect
-	github.com/miekg/dns v1.1.50 // indirect
 	github.com/miekg/pkcs11 v1.1.1 // indirect
-	github.com/minio/highwayhash v1.0.2 // indirect
-	github.com/mitchellh/copystructure v1.2.0 // indirect
-	github.com/mitchellh/mapstructure v1.5.0 // indirect
-	github.com/mitchellh/reflectwalk v1.0.2 // indirect
-	github.com/moby/sys/mountinfo v0.6.2 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
 	github.com/nats-io/jsm.go v0.0.35 // indirect
-	github.com/nats-io/jwt/v2 v2.3.0 // indirect
 	github.com/nats-io/nats-server/v2 v2.9.8 // indirect
 	github.com/nats-io/nats.go v1.20.1-0.20221122181159-398a1ecb71df // indirect
-	github.com/nats-io/natscli v0.0.35 // indirect
 	github.com/nats-io/nkeys v0.3.0 // indirect
 	github.com/nats-io/nuid v1.0.1 // indirect
-	github.com/oleiade/reflections v1.0.1 // indirect
 	github.com/open-policy-agent/opa v0.46.1 // indirect
-	github.com/patrickmn/go-cache v2.1.0+incompatible // indirect
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/prometheus/client_model v0.3.0 // indirect
 	github.com/prometheus/common v0.37.0 // indirect
 	github.com/prometheus/procfs v0.8.0 // indirect
 	github.com/rcrowley/go-metrics v0.0.0-20201227073835-cf1acfcdf475 // indirect
-	github.com/rivo/uniseg v0.4.3 // indirect
 	github.com/santhosh-tekuri/jsonschema/v5 v5.1.1 // indirect
-	github.com/shopspring/decimal v1.3.1 // indirect
-	github.com/spf13/cast v1.5.0 // indirect
 	github.com/tchap/go-patricia/v2 v2.3.1 // indirect
 	github.com/tidwall/gjson v1.14.4 // indirect
 	github.com/tidwall/match v1.1.1 // indirect
 	github.com/tidwall/pretty v1.2.1 // indirect
-	github.com/tylertreat/hdrhistogram-writer v0.0.0-20210816161836-2e440612a39f // indirect
 	github.com/xeipuuv/gojsonpointer v0.0.0-20190905194746-02993c407bfb // indirect
 	github.com/xeipuuv/gojsonreference v0.0.0-20180127040603-bd5ef7bd5415 // indirect
 	github.com/xlab/tablewriter v0.0.0-20160610135559-80b567a11ad5 // indirect
@@ -113,16 +73,11 @@ require (
 	go.uber.org/multierr v1.8.0 // indirect
 	go.uber.org/zap v1.23.0 // indirect
 	golang.org/x/crypto v0.3.0 // indirect
-	golang.org/x/mod v0.7.0 // indirect
 	golang.org/x/net v0.2.0 // indirect
 	golang.org/x/sys v0.2.0 // indirect
 	golang.org/x/term v0.2.0 // indirect
 	golang.org/x/text v0.4.0 // indirect
-	golang.org/x/time v0.2.0 // indirect
-	golang.org/x/tools v0.3.0 // indirect
 	google.golang.org/protobuf v1.28.1 // indirect
-	gopkg.in/alessio/shellescape.v1 v1.0.0-20170105083845-52074bc9df61 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
-	rsc.io/goversion v1.2.0 // indirect
 )