Switch to Go 1.11 and Go Modules to track dependencies

Allow reading password from file so that docker secrets can be used

CHANGELOG.md

@@ -1,11 +1,39 @@
 ## Changelog
 
-### 0.6
+### 0.7.4 (2018-10-30)
+
+* Switch to Go 1.11 and Go Modules to track dependencies.
+
+### 0.7.3 (2018-08-14)
+
+* Add `registry_password_file` option to the config file.
+* Improve no data message on empty tables on UI.
+* Show the root namespace "library" in the dropdown even when there are no repos in it.
+* Switch alpine Docker image to 3.8.
+
+### 0.7.2 (2018-07-30)
+
+* Make web root accessible w/o trailing slash when base_path is configured.
+
+### 0.7.1 (2018-07-18)
+
+* Fix panic when using MySQL for events storage and no table created yet.
+
+### 0.7 (2018-07-04)
+
+* When using MySQL for events storage, do not leak connections.
+* Last events were not shown when viewing a repo of non-default namespace.
+* Support repos with slash in the name.
+* Enable Sonatype Nexus compatibility.
+* Add `base_path` option to the config to run UI from non-root.
+* Add built-in cron feature for purging tags task.
+
+### 0.6 (2018-05-28)
 
 * Add MySQL along with sqlite3 support as a registry events storage.
   New config settings `event_database_driver`, `event_database_location`.
 * Bump Go version and dependencies.
 
-### 0.5
+### 0.5 (2018-03-06)
 
 * Initial public version.

Dockerfile

@@ -1,24 +1,21 @@
-FROM golang:1.10.2-alpine3.7 as builder
+FROM golang:1.11.1-alpine3.8 as builder
 
 ENV GOPATH /opt
+ENV GO111MODULE on
 
 RUN apk update && \
-    apk add ca-certificates git build-base && \
-    go get github.com/Masterminds/glide
+    apk add ca-certificates git bash gcc musl-dev
 
-ADD glide.* /opt/src/github.com/quiq/docker-registry-ui/
-RUN cd /opt/src/github.com/quiq/docker-registry-ui && \
-    /opt/bin/glide install
+WORKDIR /opt/src/github.com/quiq/docker-registry-ui
+ADD events events
+ADD registry registry
+ADD *.go go.mod go.sum ./
 
-ADD events /opt/src/github.com/quiq/docker-registry-ui/events
-ADD registry /opt/src/github.com/quiq/docker-registry-ui/registry
-ADD main.go /opt/src/github.com/quiq/docker-registry-ui/
-RUN cd /opt/src/github.com/quiq/docker-registry-ui && \
-    go test -v ./registry && \
-    go build -o /opt/docker-registry-ui github.com/quiq/docker-registry-ui
+RUN go test -v ./registry && \
+    go build -o /opt/docker-registry-ui *.go
 
 
-FROM alpine:3.7
+FROM alpine:3.8
 
 WORKDIR /opt
 RUN apk add --no-cache ca-certificates && \

Makefile

@@ -0,0 +1,10 @@
+IMAGE=quiq/docker-registry-ui
+VERSION=`sed -n '/version/ s/.* = //;s/"//g p' version.go`
+
+.DEFAULT: build
+
+build:
+	@docker build -t ${IMAGE}:${VERSION} .
+	@echo
+	@echo "The image has been built: ${IMAGE}:${VERSION}"
+	@echo

README.md

@@ -56,6 +56,7 @@ To receive events you need to configure Registry as follow:
             - application/octet-stream
 
 Adjust url and token as appropriate.
+If you are running UI from non-root base path, e.g. /ui, the URL path for above will be `/ui/api/events`.
 
 ## Using MySQL instead of sqlite3 for event listener
 
@@ -76,6 +77,12 @@ You can create a table manually if you don't want to grant `CREATE` permission:
 
 ### Schedule a cron task for purging tags
 
+To delete tags you need to enable the corresponding option in Docker Registry config. For example:
+
+    storage:
+      delete:
+        enabled: true
+
 The following example shows how to run a cron task to purge tags older than X days but also keep
 at least Y tags no matter how old. Assuming container has been already running.
 
@@ -85,6 +92,14 @@ You can try to run in dry-run mode first to see what is going to be purged:
 
     docker exec -t registry-ui /opt/docker-registry-ui -purge-tags -dry-run
 
+Alternatively, you can schedule the purging task with built-in cron feature:
+
+    purge_tags_keep_days: 90
+    purge_tags_keep_count: 2
+    purge_tags_schedule: '0 10 3 * * *'
+
+Note, the cron schedule format includes seconds! See https://godoc.org/github.com/robfig/cron
+
 ### Debug mode
 
 To increase http request verbosity, run container with `-e GOREQUEST_DEBUG=1`.

config.yml

@@ -1,5 +1,7 @@
 # Listen interface.
 listen_addr: 0.0.0.0:8000
+# Base path of Docker Registry UI.
+base_path: /
 
 # Registry URL with schema and port.
 registry_url: https://docker-registry.local
@@ -10,8 +12,11 @@ verify_tls: true
 # They need to have a full access to the registry.
 # If token authentication service is enabled, it will be auto-discovered and those credentials
 # will be used to obtain access tokens.
+# When the registry_password_file entry is used, the password can be passed as a docker secret 
+# and read from file. This overides the registry_password entry.
 registry_username: user
 registry_password: pass
+# registry_password_file: /run/secrets/registry_password_file
 
 # Event listener token.
 # The same one should be configured on Docker registry as Authorization Bearer token.
@@ -38,7 +43,11 @@ admins: []
 # Debug mode. Affects only templates.
 debug: true
 
-# CLI options.
 # How many days to keep tags but also keep the minimal count provided no matter how old.
 purge_tags_keep_days: 90
 purge_tags_keep_count: 2
+# Enable built-in cron to schedule purging tags in server mode.
+# Empty string disables this feature.
+# Example: '25 54 17 * * *' will run it at 17:54:25 daily.
+# Note, the cron schedule format includes seconds! See https://godoc.org/github.com/robfig/cron
+purge_tags_schedule: ''

events/event_listener.go

@@ -144,13 +144,13 @@ func (e *EventListener) GetEvents(repository string) []EventRow {
 		e.logger.Error("Error selecting from table: ", err)
 		return events
 	}
+	defer rows.Close()
 
 	for rows.Next() {
 		var row EventRow
 		rows.Scan(&row.ID, &row.Action, &row.Repository, &row.Tag, &row.IP, &row.User, &row.Created)
 		events = append(events, row)
 	}
-	rows.Close()
 	return events
 }
 
@@ -171,9 +171,13 @@ func (e *EventListener) getDababaseHandler() (*sql.DB, error) {
 
 	if e.databaseDriver == "mysql" {
 		schema = strings.Replace(schema, "AUTOINCREMENT", "AUTO_INCREMENT", 1)
-		if _, err := db.Query("SELECT * FROM events LIMIT 1"); err != nil {
+		rows, err := db.Query("SELECT * FROM events LIMIT 1")
+		if err != nil {
 			firstRun = true
 		}
+		if rows != nil {
+			rows.Close()
+		}
 	}
 
 	// Create table on first run.

example/.gitignore

@@ -0,0 +1 @@
+/data

example/README.md

@@ -0,0 +1,25 @@
+# Docker Registry UI Example
+
+Start the local Docker Registry and UI.
+
+```bash
+$ docker-compose up -d
+```
+
+As an example, push the docker-registry-ui image to the local Docker Registry.
+
+```bash
+$ docker tag quiq/docker-registry-ui localhost/quiq/docker-registry-ui
+$ docker push localhost/quiq/docker-registry-ui
+The push refers to repository [localhost:5000/quiq/docker-registry-ui]
+ab414a599bf8: Pushed
+a8da33adf86e: Pushed
+71a0e0a972a7: Pushed
+96dc74eb5456: Pushed
+ac362bf380d0: Pushed
+04a094fe844e: Pushed
+latest: digest: sha256:d88c1ca40986a358e59795992e87e364a0b3b97833aade5abcd79dda0a0477e8 size: 1571
+```
+
+Then you will find the pushed repository 'quiq/docker-registry-ui' in the following URL.
+http://localhost/ui/quiq/docker-registry-ui

example/config/httpd.conf

@@ -0,0 +1,79 @@
+LoadModule mpm_event_module modules/mod_mpm_event.so
+LoadModule headers_module modules/mod_headers.so
+
+LoadModule authn_file_module modules/mod_authn_file.so
+LoadModule authn_core_module modules/mod_authn_core.so
+LoadModule authz_groupfile_module modules/mod_authz_groupfile.so
+LoadModule authz_user_module modules/mod_authz_user.so
+LoadModule authz_core_module modules/mod_authz_core.so
+LoadModule auth_basic_module modules/mod_auth_basic.so
+LoadModule access_compat_module modules/mod_access_compat.so
+
+LoadModule log_config_module modules/mod_log_config.so
+
+LoadModule proxy_module modules/mod_proxy.so
+LoadModule proxy_http_module modules/mod_proxy_http.so
+
+LoadModule unixd_module modules/mod_unixd.so
+
+<IfModule unixd_module>
+    User daemon
+    Group daemon
+</IfModule>
+
+ServerAdmin you@example.com
+
+ErrorLog /proc/self/fd/2
+
+LogLevel warn
+
+<IfModule log_config_module>
+    LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\"" combined
+    LogFormat "%h %l %u %t \"%r\" %>s %b" common
+
+    <IfModule logio_module>
+      LogFormat "%h %l %u %t \"%r\" %>s %b \"%{Referer}i\" \"%{User-Agent}i\" %I %O" combinedio
+    </IfModule>
+
+    CustomLog /proc/self/fd/1 common
+</IfModule>
+
+ServerRoot "/usr/local/apache2"
+
+Listen 80
+
+<Directory />
+    AllowOverride none
+    Require all denied
+</Directory>
+
+<VirtualHost *:80>
+
+  ServerName myregistrydomain.com
+
+  Header always set "Docker-Distribution-Api-Version" "registry/2.0"
+  Header onsuccess set "Docker-Distribution-Api-Version" "registry/2.0"
+
+  ProxyRequests     off
+  ProxyPreserveHost on
+
+  # no proxy for /error/ (Apache HTTPd errors messages)
+  ProxyPass /error/ !
+
+  ProxyPass        /v2 http://registry:5000/v2
+  ProxyPassReverse /v2 http://registry:5000/v2
+
+  <Location /v2>
+    Order deny,allow
+    Allow from all
+  </Location>
+
+  ProxyPass /ui/ http://registry-ui:8000/ui/
+  ProxyPassReverse /ui/ http://registry-ui:8000/ui/
+
+  <Location /ui>
+    Order deny,allow
+    Allow from all
+  </Location>
+
+</VirtualHost>

example/config/registry-ui.yml

@@ -0,0 +1,46 @@
+# Listen interface.
+listen_addr: 0.0.0.0:8000
+# Base path of Docker Registry UI.
+base_path: /ui
+
+# Registry URL with schema and port.
+registry_url: http://registry:5000
+# Verify TLS certificate when using https.
+verify_tls: true
+
+# Docker registry credentials.
+# They need to have a full access to the registry.
+# If token authentication service is enabled, it will be auto-discovered and those credentials
+# will be used to obtain access tokens.
+# registry_username: user
+# registry_password: pass
+
+# Event listener token.
+# The same one should be configured on Docker registry as Authorization Bearer token.
+event_listener_token: token
+# Retention of records to keep.
+event_retention_days: 7
+
+# Event listener storage.
+event_database_driver: sqlite3
+event_database_location: data/registry_events.db
+# event_database_driver: mysql
+# event_database_location: user:password@tcp(localhost:3306)/docker_events
+
+# Cache refresh interval in minutes.
+# How long to cache repository list and tag counts.
+cache_refresh_interval: 10
+
+# If users can delete tags. If set to False, then only admins listed below.
+anyone_can_delete: false
+# Users allowed to delete tags.
+# This should be sent via X-WEBAUTH-USER header from your proxy.
+admins: []
+
+# Debug mode. Affects only templates.
+debug: true
+
+# CLI options.
+# How many days to keep tags but also keep the minimal count provided no matter how old.
+purge_tags_keep_days: 90
+purge_tags_keep_count: 2

example/docker-compose.yml

@@ -0,0 +1,31 @@
+version: "2.3"
+
+services:
+  httpd:
+    image: httpd:2.4
+    ports:
+      - "80:80"
+    volumes:
+      - "./config/httpd.conf:/usr/local/apache2/conf/httpd.conf:ro"
+
+  registry:
+    image: registry:2
+    ports:
+      - "5000"
+    volumes:
+      - "./data/registry:/var/lib/registry"
+    healthcheck:
+      test: ["CMD", "wget", "-s", "localhost:5000/v2/"]
+      interval: 5s
+      timeout: 10s
+
+  registry-ui:
+    image: quiq/docker-registry-ui:latest
+    ports:
+      - "8000"
+    volumes:
+      - "./data/registry-ui:/opt/data"
+      - "./config/registry-ui.yml:/opt/config.yml:ro"
+    depends_on:
+      registry:
+        condition: service_healthy

glide.lock

@@ -1,78 +0,0 @@
-hash: d156899e94e2d0d92ed200d5729bec5d0d205b5b98bbf2bd89f7f91c9ed7a518
-updated: 2018-05-28T13:28:11.313447+03:00
-imports:
-- name: github.com/CloudyKit/fastprinter
-  version: 74b38d55f37af5d6c05ca11147d616b613a3420e
-- name: github.com/CloudyKit/jet
-  version: 2b064536b25ab0e9c54245f9e2cc5bd4766033fe
-- name: github.com/dgrijalva/jwt-go
-  version: 06ea1031745cb8b3dab3f6a236daf2b0aa468b7e
-- name: github.com/go-sql-driver/mysql
-  version: 64db0f7ebe171b596aa9b26f39a79f7413a3b617
-- name: github.com/hhkbp2/go-logging
-  version: 377ba05d98977baa2a0d9e13f13aac2f3a47ac4d
-- name: github.com/hhkbp2/go-strftime
-  version: d82166ec6782f870431668391c2e321069632fe7
-- name: github.com/labstack/echo
-  version: 6d227dfea4d2e52cb76856120b3c17f758139b4e
-  subpackages:
-  - middleware
-- name: github.com/labstack/gommon
-  version: 0a22a0df01a7c84944c607e8a6e91cfe421ea7ed
-  subpackages:
-  - bytes
-  - color
-  - log
-  - random
-- name: github.com/mattn/go-colorable
-  version: efa589957cd060542a26d2dd7832fd6a6c6c3ade
-- name: github.com/mattn/go-isatty
-  version: 6ca4dbf54d38eea1a992b3c722a76a5d1c4cb25c
-- name: github.com/mattn/go-sqlite3
-  version: 323a32be5a2421b8c7087225079c6c900ec397cd
-- name: github.com/moul/http2curl
-  version: 9ac6cf4d929b2fa8fd2d2e6dec5bb0feb4f4911d
-- name: github.com/parnurzeal/gorequest
-  version: a578a48e8d6ca8b01a3b18314c43c6716bb5f5a3
-- name: github.com/pkg/errors
-  version: 816c9085562cd7ee03e7f8188a1cfd942858cded
-- name: github.com/tidwall/gjson
-  version: 01f00f129617a6fe98941fb920d6c760241b54d2
-- name: github.com/tidwall/match
-  version: 1731857f09b1f38450e2c12409748407822dc6be
-- name: github.com/valyala/bytebufferpool
-  version: e746df99fe4a3986f4d4f79e13c1e0117ce9c2f7
-- name: github.com/valyala/fasttemplate
-  version: dcecefd839c4193db0d35b88ec65b4c12d360ab0
-- name: golang.org/x/crypto
-  version: 1a580b3eff7814fc9b40602fd35256c63b50f491
-  subpackages:
-  - acme
-  - acme/autocert
-- name: golang.org/x/net
-  version: dfa909b99c79129e1100513e5cd36307665e5723
-  subpackages:
-  - publicsuffix
-- name: golang.org/x/sys
-  version: 7c87d13f8e835d2fb3a70a2912c811ed0c1d241b
-  subpackages:
-  - unix
-- name: google.golang.org/appengine
-  version: b1f26356af11148e710935ed1ac8a7f5702c7612
-  subpackages:
-  - cloudsql
-- name: gopkg.in/yaml.v2
-  version: 5420a8b6744d3b0345ab293f6fcba19c978f1183
-testImports:
-- name: github.com/jtolds/gls
-  version: 9a4a02dbe491bef4bab3c24fd9f3087d6c4c6690
-- name: github.com/smartystreets/assertions
-  version: 01fedaa993c0a9f9aa55111501cd7c81a49e812e
-  subpackages:
-  - internal/oglematchers
-- name: github.com/smartystreets/goconvey
-  version: d4c757aa9afd1e2fc1832aaab209b5794eb336e1
-  subpackages:
-  - convey
-  - convey/gotest
-  - convey/reporting

glide.yaml

@@ -1,21 +0,0 @@
-package: github.com/quiq/docker-registry-ui
-import:
-- package: github.com/CloudyKit/jet
-  version: v2.1.2
-- package: github.com/labstack/echo
-  version: v3.3.5
-  subpackages:
-  - middleware
-- package: github.com/parnurzeal/gorequest
-  version: v0.2.15
-- package: github.com/hhkbp2/go-logging
-- package: github.com/tidwall/gjson
-  version: v1.1.0
-- package: github.com/mattn/go-sqlite3
-  version: 1.7.0
-- package: github.com/go-sql-driver/mysql
-testImport:
-- package: github.com/smartystreets/goconvey
-  version: 1.6.2
-  subpackages:
-  - convey

go.mod

@@ -0,0 +1,31 @@
+module github.com/quiq/docker-registry-ui
+
+require (
+	github.com/CloudyKit/fastprinter v0.0.0-20170127035650-74b38d55f37a // indirect
+	github.com/CloudyKit/jet v2.1.2+incompatible
+	github.com/elazarl/goproxy v0.0.0-20181003060214-f58a169a71a5 // indirect
+	github.com/go-sql-driver/mysql v0.0.0-20180526092451-64db0f7ebe17
+	github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1 // indirect
+	github.com/hhkbp2/go-logging v0.0.0-20171106042747-377ba05d9897
+	github.com/hhkbp2/go-strftime v0.0.0-20150709091403-d82166ec6782 // indirect
+	github.com/hhkbp2/testify v0.0.0-20150512090439-112845ebc045 // indirect
+	github.com/jtolds/gls v4.2.1+incompatible // indirect
+	github.com/labstack/echo v0.0.0-20180911044237-1abaa3049251
+	github.com/labstack/gommon v0.0.0-20180506140623-0a22a0df01a7 // indirect
+	github.com/mattn/go-isatty v0.0.4 // indirect
+	github.com/mattn/go-sqlite3 v1.7.0
+	github.com/moul/http2curl v0.0.0-20170919181001-9ac6cf4d929b // indirect
+	github.com/parnurzeal/gorequest v0.2.15
+	github.com/pkg/errors v0.0.0-20180311214515-816c9085562c // indirect
+	github.com/robfig/cron v0.0.0-20180505203441-b41be1df6967
+	github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d // indirect
+	github.com/smartystreets/goconvey v0.0.0-20180222194500-ef6db91d284a
+	github.com/tidwall/gjson v1.1.0
+	github.com/tidwall/match v0.0.0-20171002075945-1731857f09b1 // indirect
+	github.com/valyala/bytebufferpool v1.0.0 // indirect
+	golang.org/x/crypto v0.0.0-20180515001509-1a580b3eff78 // indirect
+	golang.org/x/net v0.0.0-20180524181706-dfa909b99c79 // indirect
+	golang.org/x/sys v0.0.0-20180514143608-7c87d13f8e83 // indirect
+	google.golang.org/appengine v1.1.0 // indirect
+	gopkg.in/yaml.v2 v2.2.1
+)

go.sum

@@ -0,0 +1,73 @@
+github.com/CloudyKit/fastprinter v0.0.0-20170127035650-74b38d55f37a h1:3SgJcK9l5uPdBC/X17wanyJAMxM33+4ZhEIV96MIH8U=
+github.com/CloudyKit/fastprinter v0.0.0-20170127035650-74b38d55f37a/go.mod h1:EFZQ978U7x8IRnstaskI3IysnWY5Ao3QgZUKOXlsAdw=
+github.com/CloudyKit/jet v2.1.2+incompatible h1:ybZoYzMBdoijK6I+Ke3vg9GZsmlKo/ZhKdNMWz0P26c=
+github.com/CloudyKit/jet v2.1.2+incompatible/go.mod h1:HPYO+50pSWkPoj9Q/eq0aRGByCL6ScRlUmiEX5Zgm+w=
+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/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/elazarl/goproxy v0.0.0-20181003060214-f58a169a71a5 h1:LCoguo7Zd0MByKMbQbTvcZw7HiBcbvew+MOcwsJVwrY=
+github.com/elazarl/goproxy v0.0.0-20181003060214-f58a169a71a5/go.mod h1:/Zj4wYkgs4iZTTu3o/KG3Itv/qCCa8VVMlb3i9OVuzc=
+github.com/go-sql-driver/mysql v0.0.0-20180526092451-64db0f7ebe17 h1:0J5ldStBfM6jDep4uzPGSC1Tqwk3UVDW1QPAaIxPhAQ=
+github.com/go-sql-driver/mysql v0.0.0-20180526092451-64db0f7ebe17/go.mod h1:zAC/RDZ24gD3HViQzih4MyKcchzm+sOG5ZlKdlhCg5w=
+github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1 h1:EGx4pi6eqNxGaHF6qqu48+N2wcFQ5qg5FXgOdqsJ5d8=
+github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY=
+github.com/hhkbp2/go-logging v0.0.0-20171106042747-377ba05d9897 h1:0vxLTAKJQ8n7revuQ11xssUZbuyGwMuDGMRdaxrviuM=
+github.com/hhkbp2/go-logging v0.0.0-20171106042747-377ba05d9897/go.mod h1:zAp/KbVJna4DHUdeSPYGsRNn9c62x569NIr9ssBuZ/I=
+github.com/hhkbp2/go-strftime v0.0.0-20150709091403-d82166ec6782 h1:Evl9i7wBY3bjJ3NqHs0ldhnKOdQL4Kaum9ve1JAmiCE=
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+google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v2 v2.2.1 h1:mUhvW9EsL+naU5Q3cakzfE91YhliOondGd6ZrsDBHQE=
+gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=

main.go

@@ -3,7 +3,6 @@ package main
 import (
 	"flag"
 	"fmt"
-	"io"
 	"io/ioutil"
 	"net/http"
 	"net/url"
@@ -15,16 +14,19 @@ import (
 	"github.com/labstack/echo/middleware"
 	"github.com/quiq/docker-registry-ui/events"
 	"github.com/quiq/docker-registry-ui/registry"
+	"github.com/robfig/cron"
 	"github.com/tidwall/gjson"
 	"gopkg.in/yaml.v2"
 )
 
 type configData struct {
 	ListenAddr            string   `yaml:"listen_addr"`
+	BasePath              string   `yaml:"base_path"`
 	RegistryURL           string   `yaml:"registry_url"`
 	VerifyTLS             bool     `yaml:"verify_tls"`
 	Username              string   `yaml:"registry_username"`
 	Password              string   `yaml:"registry_password"`
+	PasswordFile          string   `yaml:"registry_password_file"`
 	EventListenerToken    string   `yaml:"event_listener_token"`
 	EventRetentionDays    int      `yaml:"event_retention_days"`
 	EventDatabaseDriver   string   `yaml:"event_database_driver"`
@@ -35,6 +37,7 @@ type configData struct {
 	Debug                 bool     `yaml:"debug"`
 	PurgeTagsKeepDays     int      `yaml:"purge_tags_keep_days"`
 	PurgeTagsKeepCount    int      `yaml:"purge_tags_keep_count"`
+	PurgeTagsSchedule     string   `yaml:"purge_tags_schedule"`
 }
 
 type template struct {
@@ -75,6 +78,26 @@ func main() {
 	if err != nil {
 		panic(err)
 	}
+	// Normalize base path.
+	if a.config.BasePath != "" {
+		if !strings.HasPrefix(a.config.BasePath, "/") {
+			a.config.BasePath = "/" + a.config.BasePath
+		}
+		if strings.HasSuffix(a.config.BasePath, "/") {
+			a.config.BasePath = a.config.BasePath[0 : len(a.config.BasePath)-1]
+		}
+	}
+	// Read password from file.
+	if a.config.PasswordFile != "" {
+		if _, err := os.Stat(a.config.PasswordFile); os.IsNotExist(err) {
+			panic(err)
+		}
+		passwordBytes, err := ioutil.ReadFile(a.config.PasswordFile)
+		if err != nil {
+			panic(err)
+		}
+		a.config.Password = strings.TrimSuffix(string(passwordBytes[:]), "\n")
+	}
 
 	// Init registry API client.
 	a.client = registry.NewClient(a.config.RegistryURL, a.config.VerifyTLS, a.config.Username, a.config.Password)
@@ -84,9 +107,20 @@ func main() {
 
 	// Execute CLI task and exit.
 	if purgeTags {
-		registry.PurgeOldTags(a.client, purgeDryRun, a.config.PurgeTagsKeepDays, a.config.PurgeTagsKeepCount)
+		a.purgeOldTags(purgeDryRun)
 		return
 	}
+	// Schedules to purge tags.
+	if a.config.PurgeTagsSchedule != "" {
+		c := cron.New()
+		task := func() {
+			a.purgeOldTags(purgeDryRun)
+		}
+		if err := c.AddFunc(a.config.PurgeTagsSchedule, task); err != nil {
+			panic(fmt.Errorf("Invalid schedule format: %s", a.config.PurgeTagsSchedule))
+		}
+		c.Start()
+	}
 
 	// Count tags in background.
 	go a.client.CountTags(a.config.CacheRefreshInterval)
@@ -97,45 +131,23 @@ func main() {
 	a.eventListener = events.NewEventListener(a.config.EventDatabaseDriver, a.config.EventDatabaseLocation, a.config.EventRetentionDays)
 
 	// Template engine init.
-	view := jet.NewHTMLSet("templates")
-	view.SetDevelopmentMode(a.config.Debug)
-	view.AddGlobal("registryHost", u.Host)
-	view.AddGlobal("pretty_size", func(size interface{}) string {
-		var value float64
-		switch i := size.(type) {
-		case gjson.Result:
-			value = float64(i.Int())
-		case int64:
-			value = float64(i)
-		}
-		return registry.PrettySize(value)
-	})
-	view.AddGlobal("pretty_time", func(datetime interface{}) string {
-		d := strings.Replace(datetime.(string), "T", " ", 1)
-		d = strings.Replace(d, "Z", "", 1)
-		return strings.Split(d, ".")[0]
-	})
-	view.AddGlobal("parse_map", func(m interface{}) string {
-		var res string
-		for _, k := range registry.SortedMapKeys(m) {
-			res = res + fmt.Sprintf(`<tr><td style="padding: 0 10px; width: 20%%">%s</td><td style="padding: 0 10px">%v</td></tr>`, k, m.(map[string]interface{})[k])
-		}
-		return res
-	})
 	e := echo.New()
-	e.Renderer = &template{View: view}
+	e.Renderer = setupRenderer(a.config.Debug, u.Host, a.config.BasePath)
 
 	// Web routes.
-	e.Static("/static", "static")
-	e.GET("/", a.viewRepositories)
-	e.GET("/:namespace", a.viewRepositories)
-	e.GET("/:namespace/:repo", a.viewTags)
-	e.GET("/:namespace/:repo/:tag", a.viewTagInfo)
-	e.GET("/:namespace/:repo/:tag/delete", a.deleteTag)
-	e.GET("/events", a.viewLog)
+	e.Static(a.config.BasePath+"/static", "static")
+	if a.config.BasePath != "" {
+		e.GET(a.config.BasePath, a.viewRepositories)
+	}
+	e.GET(a.config.BasePath+"/", a.viewRepositories)
+	e.GET(a.config.BasePath+"/:namespace", a.viewRepositories)
+	e.GET(a.config.BasePath+"/:namespace/:repo", a.viewTags)
+	e.GET(a.config.BasePath+"/:namespace/:repo/:tag", a.viewTagInfo)
+	e.GET(a.config.BasePath+"/:namespace/:repo/:tag/delete", a.deleteTag)
+	e.GET(a.config.BasePath+"/events", a.viewLog)
 
 	// Protected event listener.
-	p := e.Group("/api")
+	p := e.Group(a.config.BasePath + "/api")
 	p.Use(middleware.KeyAuthWithConfig(middleware.KeyAuthConfig{
 		Validator: middleware.KeyAuthValidator(func(token string, c echo.Context) (bool, error) {
 			return token == a.config.EventListenerToken, nil
@@ -146,23 +158,6 @@ func main() {
 	e.Logger.Fatal(e.Start(a.config.ListenAddr))
 }
 
-// Render render template.
-func (r *template) Render(w io.Writer, name string, data interface{}, c echo.Context) error {
-	t, err := r.View.GetTemplate(name)
-	if err != nil {
-		panic(fmt.Errorf("Fatal error template file: %s", err))
-	}
-	vars, ok := data.(jet.VarMap)
-	if !ok {
-		vars = jet.VarMap{}
-	}
-	err = t.Execute(w, vars, nil)
-	if err != nil {
-		panic(fmt.Errorf("Error rendering template %s: %s", name, err))
-	}
-	return nil
-}
-
 func (a *apiClient) viewRepositories(c echo.Context) error {
 	namespace := c.Param("namespace")
 	if namespace == "" {
@@ -170,7 +165,6 @@ func (a *apiClient) viewRepositories(c echo.Context) error {
 	}
 
 	repos, _ := a.client.Repositories(true)[namespace]
-
 	data := jet.VarMap{}
 	data.Set("namespace", namespace)
 	data.Set("namespaces", a.client.Namespaces())
@@ -196,7 +190,8 @@ func (a *apiClient) viewTags(c echo.Context) error {
 	data.Set("repo", repo)
 	data.Set("tags", tags)
 	data.Set("deleteAllowed", deleteAllowed)
-	data.Set("events", a.eventListener.GetEvents(repo))
+	repoPath, _ = url.PathUnescape(repoPath)
+	data.Set("events", a.eventListener.GetEvents(repoPath))
 
 	return c.Render(http.StatusOK, "tags.html", data)
 }
@@ -212,7 +207,7 @@ func (a *apiClient) viewTagInfo(c echo.Context) error {
 
 	sha256, infoV1, infoV2 := a.client.TagInfo(repoPath, tag, false)
 	if infoV1 == "" || infoV2 == "" {
-		return c.Redirect(http.StatusSeeOther, fmt.Sprintf("/%s/%s", namespace, repo))
+		return c.Redirect(http.StatusSeeOther, fmt.Sprintf("%s/%s/%s", a.config.BasePath, namespace, repo))
 	}
 
 	var imageSize int64
@@ -272,7 +267,7 @@ func (a *apiClient) deleteTag(c echo.Context) error {
 		a.client.DeleteTag(repoPath, tag)
 	}
 
-	return c.Redirect(http.StatusSeeOther, fmt.Sprintf("/%s/%s", namespace, repo))
+	return c.Redirect(http.StatusSeeOther, fmt.Sprintf("%s/%s/%s", a.config.BasePath, namespace, repo))
 }
 
 // checkDeletePermission check if tag deletion is allowed whether by anyone or permitted users.
@@ -302,3 +297,8 @@ func (a *apiClient) receiveEvents(c echo.Context) error {
 	a.eventListener.ProcessEvents(c.Request())
 	return c.String(http.StatusOK, "OK")
 }
+
+// purgeOldTags purges old tags.
+func (a *apiClient) purgeOldTags(dryRun bool) {
+	registry.PurgeOldTags(a.client, dryRun, a.config.PurgeTagsKeepDays, a.config.PurgeTagsKeepCount)
+}

registry/client.go

@@ -69,7 +69,7 @@ func NewClient(url string, verifyTLS bool, username, password string) *Client {
 			c.logger.Warn("No token auth service discovered from ", c.url)
 			return nil
 		}
-	} else if strings.HasPrefix(authHeader, "Basic") {
+	} else if strings.HasPrefix(strings.ToLower(authHeader), "basic") {
 		c.request = c.request.SetBasicAuth(c.username, c.password)
 		c.logger.Info("It was discovered the registry is configured with HTTP basic auth.")
 	}
@@ -148,6 +148,9 @@ func (c *Client) Namespaces() []string {
 	for k := range c.repos {
 		namespaces = append(namespaces, k)
 	}
+	if !ItemInSlice("library", namespaces) {
+		namespaces = append(namespaces, "library")
+	}
 	sort.Strings(namespaces)
 	return namespaces
 }

registry/common.go

@@ -42,3 +42,13 @@ func PrettySize(size float64) string {
 	}
 	return fmt.Sprintf("%.*f %s", 0, size, units[i])
 }
+
+// ItemInSlice check if item is an element of slice
+func ItemInSlice(item string, slice []string) bool {
+	for _, i := range slice {
+		if i == item {
+			return true
+		}
+	}
+	return false
+}

registry/common_test.go

@@ -45,3 +45,13 @@ func TestPrettySize(t *testing.T) {
 		}
 	})
 }
+
+func TestItemInSlice(t *testing.T) {
+	a := []string{"abc", "def", "ghi"}
+	convey.Convey("Check whether element is in slice", t, func() {
+		convey.So(ItemInSlice("abc", a), convey.ShouldBeTrue)
+		convey.So(ItemInSlice("ghi", a), convey.ShouldBeTrue)
+		convey.So(ItemInSlice("abc1", a), convey.ShouldBeFalse)
+		convey.So(ItemInSlice("gh", a), convey.ShouldBeFalse)
+	})
+}

template.go

@@ -0,0 +1,76 @@
+package main
+
+import (
+	"fmt"
+	"io"
+	"net/url"
+	"strings"
+
+	"github.com/CloudyKit/jet"
+	"github.com/labstack/echo"
+	"github.com/quiq/docker-registry-ui/registry"
+	"github.com/tidwall/gjson"
+)
+
+// Template Jet template.
+type Template struct {
+	View *jet.Set
+}
+
+// Render render template.
+func (r *Template) Render(w io.Writer, name string, data interface{}, c echo.Context) error {
+	t, err := r.View.GetTemplate(name)
+	if err != nil {
+		panic(fmt.Errorf("Fatal error template file: %s", err))
+	}
+	vars, ok := data.(jet.VarMap)
+	if !ok {
+		vars = jet.VarMap{}
+	}
+	err = t.Execute(w, vars, nil)
+	if err != nil {
+		panic(fmt.Errorf("Error rendering template %s: %s", name, err))
+	}
+	return nil
+}
+
+// setupRenderer template engine init.
+func setupRenderer(debug bool, registryHost, basePath string) *Template {
+	view := jet.NewHTMLSet("templates")
+	view.SetDevelopmentMode(debug)
+
+	view.AddGlobal("version", version)
+	view.AddGlobal("basePath", basePath)
+	view.AddGlobal("registryHost", registryHost)
+	view.AddGlobal("pretty_size", func(size interface{}) string {
+		var value float64
+		switch i := size.(type) {
+		case gjson.Result:
+			value = float64(i.Int())
+		case int64:
+			value = float64(i)
+		}
+		return registry.PrettySize(value)
+	})
+	view.AddGlobal("pretty_time", func(datetime interface{}) string {
+		d := strings.Replace(datetime.(string), "T", " ", 1)
+		d = strings.Replace(d, "Z", "", 1)
+		return strings.Split(d, ".")[0]
+	})
+	view.AddGlobal("parse_map", func(m interface{}) string {
+		var res string
+		for _, k := range registry.SortedMapKeys(m) {
+			res = res + fmt.Sprintf(`<tr><td style="padding: 0 10px; width: 20%%">%s</td><td style="padding: 0 10px">%v</td></tr>`, k, m.(map[string]interface{})[k])
+		}
+		return res
+	})
+	view.AddGlobal("url_decode", func(m interface{}) string {
+		res, err := url.PathUnescape(m.(string))
+		if err != nil {
+			return m.(string)
+		}
+		return res
+	})
+
+	return &Template{View: view}
+}

templates/base.html

@@ -15,15 +15,15 @@
                 <h2>Docker Registry UI</h2>
             </div>
             <div style="float: right">
-                <a href="/events">Event Log</a>
+                <a href="{{ basePath }}/events">Event Log</a>
             </div>
             <div style="clear: both"></div>
 
             {{yield body()}}
 
             <div style="padding: 10px 0; margin-bottom: 20px">
-                <div style="float: left">
-                    &copy; 2017-2018 <a href="https://goquiq.com">Quiq Inc.</a>
+                <div style="text-align: center; color:darkgrey">
+                    Docker Registry UI v{{version}} &copy; 2017-2018 <a href="https://goquiq.com">Quiq Inc.</a>
                 </div>
             </div>
         </div>

templates/event_log.html

@@ -6,7 +6,10 @@
         $('#datatable').DataTable({
             "pageLength": 10,
             "order": [[ 4, 'desc' ]],
-            "stateSave": true
+            "stateSave": true,
+            "language": {
+                "emptyTable": "No events."
+            }
         });
     });
 </script>
@@ -14,7 +17,7 @@
 
 {{block body()}}
 <ol class="breadcrumb">
-    <li><a href="/">Home</a></li>
+    <li><a href="{{ basePath }}/">Home</a></li>
     <li class="active">Event Log</li>
 </ol>
 

templates/repositories.html

@@ -3,19 +3,25 @@
 {{block head()}}
 <script type="text/javascript">
     $(document).ready(function() {
-        $('#datatable').DataTable({
-            "pageLength": 25,
-            "stateSave": true
-        });
         $('#namespace').on('change', function (e) {
-            window.location = '/' + this.value;
+            window.location = '{{ basePath }}/' + this.value;
         });
-        if (window.location.pathname == '/') {
+        namespace = window.location.pathname;
+        namespace = namespace.replace("{{ basePath }}", "");
+        if (namespace == '/') {
             namespace = 'library';
         } else {
-            namespace = window.location.pathname.split('/')[1]
+            namespace = namespace.split('/')[1]
         }
         $('#namespace').val(namespace);
+
+        $('#datatable').DataTable({
+            "pageLength": 25,
+            "stateSave": true,
+            "language": {
+                "emptyTable": "No repositories in \"" + namespace + "\" namespace."
+            }
+        });
     });
 </script>
 {{end}}
@@ -23,15 +29,19 @@
 {{block body()}}
 <div style="float: right">
     <select id="namespace" class="form-control input-sm" style="height: 36px">
-        <option value="" disabled>-- Namespace --</option>
         {{range namespace := namespaces}}
         <option value="{{ namespace }}">{{ namespace }}</option>
         {{end}}
     </select>
 </div>
+<div style="float: right">
+    <ol class="breadcrumb">
+        <li class="active">Namespace</li>
+    </ol>
+</div>
 
 <ol class="breadcrumb">
-    <li><a href="/">Home</a></li>
+    <li><a href="{{ basePath }}/">Home</a></li>
 </ol>
 
 <table id="datatable" class="table table-striped table-bordered">
@@ -44,7 +54,7 @@
     <tbody>
         {{range repo := repos}}
             <tr>
-                <td><a href="/{{ namespace }}/{{ repo }}">{{ repo }}</a></td>
+                <td><a href="{{ basePath }}/{{ namespace }}/{{ repo|url }}">{{ repo }}</a></td>
                 <td>{{ tagCounts[namespace+"/"+repo] }}</td>
             </tr>
         {{end}}

templates/tag_info.html

@@ -4,11 +4,11 @@
 
 {{block body()}}
 <ol class="breadcrumb">
-    <li><a href="/">Home</a></li>
+    <li><a href="{{ basePath }}/">Home</a></li>
     {{if namespace != "library"}}
-    <li><a href="/{{ namespace }}">{{ namespace }}</a></li>
+    <li><a href="{{ basePath }}/{{ namespace }}">{{ namespace }}</a></li>
     {{end}}
-    <li><a href="/{{ namespace }}/{{ repo }}">{{ repo }}</a></li>
+    <li><a href="{{ basePath }}/{{ namespace }}/{{ repo }}">{{ repo|url_decode }}</a></li>
     <li class="active">{{ tag }}</li>
 </ol>
 <table class="table table-striped table-bordered">

templates/tags.html

@@ -1,7 +1,7 @@
 {{extends "base.html"}}
 
 {{block head()}}
-<script type="text/javascript" src="/static/bootstrap-confirmation.min.js"></script>
+<script type="text/javascript" src="{{ basePath }}/static/bootstrap-confirmation.min.js"></script>
 <script type="text/javascript" src="https://cdn.datatables.net/plug-ins/1.10.16/sorting/natural.js"></script>
 <script type="text/javascript">
     $(document).ready(function() {
@@ -11,7 +11,10 @@
             "stateSave": true,
             columnDefs: [
               { type: 'natural', targets: 0 }
-            ]
+            ],
+            "language": {
+                "emptyTable": "No tags in this repository."
+            }
         })
         function populateConfirmation()  {
             $('[data-toggle=confirmation]').confirmation({
@@ -29,11 +32,11 @@
 
 {{block body()}}
 <ol class="breadcrumb">
-    <li><a href="/">Home</a></li>
+    <li><a href="{{ basePath }}/">Home</a></li>
     {{if namespace != "library"}}
-    <li><a href="/{{ namespace }}">{{ namespace }}</a></li>
+    <li><a href="{{ basePath }}/{{ namespace }}">{{ namespace }}</a></li>
     {{end}}
-    <li class="active">{{ repo }}</li>
+    <li class="active">{{ repo|url_decode }}</li>
 </ol>
 
 <table id="datatable" class="table table-striped table-bordered">
@@ -46,9 +49,9 @@
         {{range tag := tags}}
         <tr>
             <td>
-                <a href="/{{ namespace }}/{{ repo }}/{{ tag }}">{{ tag }}</a>
+                <a href="{{ basePath }}/{{ namespace }}/{{ repo }}/{{ tag }}">{{ tag }}</a>
                 {{if deleteAllowed}}
-                <a href="/{{ namespace }}/{{ repo }}/{{ tag }}/delete" data-toggle="confirmation" class="btn btn-danger btn-xs pull-right" role="button">Delete</a>
+                <a href="{{ basePath }}/{{ namespace }}/{{ repo }}/{{ tag }}/delete" data-toggle="confirmation" class="btn btn-danger btn-xs pull-right" role="button">Delete</a>
                 {{end}}
             </td>
         </tr>

version.go

@@ -0,0 +1,3 @@
+package main
+
+const version = "0.7.4"