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Postgres: Add SSL support for datasource (#21341)

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* Add SSL certificate/key fields to Postgres data source configuration

Co-authored-by: Edwin Cordeiro <edwin@scordeiro.net>
Co-authored-by: Diana Payton <52059945+oddlittlebird@users.noreply.github.com>
Co-authored-by: Arve Knudsen <arve.knudsen@gmail.com>
This commit is contained in:
Ryan 2020-04-09 22:48:29 +12:00 committed by GitHub
parent 94f2a3ebae
commit 1f0e1b33bc
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3 changed files with 85 additions and 21 deletions
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3
docs/sources/administration/provisioning.md
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@ -160,6 +160,9 @@ Since not all datasources have the same configuration settings we only have the
| tsdbVersion | string | OpenTSDB | Version |
| tsdbResolution | string | OpenTSDB | Resolution |
| sslmode | string | PostgreSQL | SSLmode. 'disable', 'require', 'verify-ca' or 'verify-full' |
| sslRootCertFile | string | PostgreSQL | SSL server root certificate file, must be readable by the Grafana user |
| sslCertFile | string | PostgreSQL | SSL client certificate file, must be readable by the Grafana user |
| sslKeyFile | string | PostgreSQL | SSL client key file, must be readable by *only* the Grafana user |
| encrypt | string | MSSQL | Connection SSL encryption handling. 'disable', 'false' or 'true' |
| postgresVersion | number | PostgreSQL | Postgres version as a number (903/904/905/906/1000) meaning v9.3, v9.4, ..., v10 |
| timescaledb | boolean | PostgreSQL | Enable usage of TimescaleDB extension |

51
pkg/tsdb/postgres/postgres.go
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@ -2,8 +2,10 @@ package postgres
import (
"database/sql"
"fmt"
"net/url"
"strconv"
"strings"
"github.com/grafana/grafana/pkg/setting"
@ -20,8 +22,13 @@ func init() {
func newPostgresQueryEndpoint(datasource *models.DataSource) (tsdb.TsdbQueryEndpoint, error) {
logger := log.New("tsdb.postgres")
logger.Debug("Creating Postgres query endpoint")
cnnstr, err := generateConnectionString(datasource, logger)
if err != nil {
return nil, err
}
cnnstr := generateConnectionString(datasource)
if setting.Env == setting.DEV {
logger.Debug("getEngine", "connection", cnnstr)
}
@ -39,19 +46,51 @@ func newPostgresQueryEndpoint(datasource *models.DataSource) (tsdb.TsdbQueryEndp
timescaledb := datasource.JsonData.Get("timescaledb").MustBool(false)
return sqleng.NewSqlQueryEndpoint(&config, &queryResultTransformer, newPostgresMacroEngine(timescaledb), logger)
endpoint, err := sqleng.NewSqlQueryEndpoint(&config, &queryResultTransformer, newPostgresMacroEngine(timescaledb), logger)
if err == nil {
logger.Debug("Successfully connected to Postgres")
} else {
logger.Debug("Failed connecting to Postgres", "err", err)
}
return endpoint, err
}
func generateConnectionString(datasource *models.DataSource) string {
sslmode := datasource.JsonData.Get("sslmode").MustString("verify-full")
func generateConnectionString(datasource *models.DataSource, logger log.Logger) (string, error) {
sslMode := strings.TrimSpace(strings.ToLower(datasource.JsonData.Get("sslmode").MustString("verify-full")))
isSSLDisabled := sslMode == "disable"
// Always pass SSL mode
sslOpts := fmt.Sprintf("sslmode=%s", url.QueryEscape(sslMode))
if isSSLDisabled {
logger.Debug("Postgres SSL is disabled")
} else {
logger.Debug("Postgres SSL is enabled", "sslMode", sslMode)
// Attach root certificate if provided
if sslRootCert := datasource.JsonData.Get("sslRootCertFile").MustString(""); sslRootCert != "" {
logger.Debug("Setting server root certificate", "sslRootCert", sslRootCert)
sslOpts = fmt.Sprintf("%s&sslrootcert=%s", sslOpts, url.QueryEscape(sslRootCert))
}
// Attach client certificate and key if both are provided
sslCert := datasource.JsonData.Get("sslCertFile").MustString("")
sslKey := datasource.JsonData.Get("sslKeyFile").MustString("")
if sslCert != "" && sslKey != "" {
logger.Debug("Setting SSL client auth", "sslCert", sslCert, "sslKey", sslKey)
sslOpts = fmt.Sprintf("%s&sslcert=%s&sslkey=%s", sslOpts, url.QueryEscape(sslCert), url.QueryEscape(sslKey))
} else if sslCert != "" || sslKey != "" {
return "", fmt.Errorf("SSL client certificate and key must both be specified")
}
}
u := &url.URL{
Scheme: "postgres",
User: url.UserPassword(datasource.User, datasource.DecryptedPassword()),
Host: datasource.Url, Path: datasource.Database,
RawQuery: "sslmode=" + url.QueryEscape(sslmode),
RawQuery: sslOpts,
}
return u.String()
return u.String(), nil
}
type postgresQueryResultTransformer struct {

52
public/app/plugins/datasource/postgres/partials/config.html
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@ -3,18 +3,18 @@
<div class="gf-form-group">
<div class="gf-form max-width-30">
<span class="gf-form-label width-7">Host</span>
<span class="gf-form-label width-10">Host</span>
<input type="text" class="gf-form-input" ng-model='ctrl.current.url' placeholder="localhost:5432" bs-typeahead="{{['localhost:5432', 'localhost:5433']}}" required></input>
</div>
<div class="gf-form max-width-30">
<span class="gf-form-label width-7">Database</span>
<span class="gf-form-label width-10">Database</span>
<input type="text" class="gf-form-input" ng-model='ctrl.current.database' placeholder="database name" required></input>
</div>
<div class="gf-form-inline">
<div class="gf-form max-width-15">
<span class="gf-form-label width-7">User</span>
<span class="gf-form-label width-10">User</span>
<input type="text" class="gf-form-input" ng-model='ctrl.current.user' placeholder="user"></input>
</div>
<div class="gf-form">
@ -26,17 +26,40 @@
inputWidth="9"
/>
</div>
</div>
<div class="gf-form">
<label class="gf-form-label width-7">SSL Mode</label>
<div class="gf-form-select-wrapper max-width-15 gf-form-select-wrapper--has-help-icon">
<select class="gf-form-input" ng-model="ctrl.current.jsonData.sslmode" ng-options="mode for mode in ['disable', 'require', 'verify-ca', 'verify-full']" ng-init="ctrl.current.jsonData.sslmode"></select>
<info-popover mode="right-absolute">
This option determines whether or with what priority a secure SSL TCP/IP connection will be negotiated with the server.
</info-popover>
</div>
</div>
</div>
<div class="gf-form">
<label class="gf-form-label width-10">SSL Mode</label>
<div class="gf-form-select-wrapper max-width-15 gf-form-select-wrapper--has-help-icon">
<select class="gf-form-input" ng-model="ctrl.current.jsonData.sslmode" ng-options="mode for mode in ['disable', 'require', 'verify-ca', 'verify-full']" ng-init="ctrl.current.jsonData.sslmode"></select>
<info-popover mode="right-absolute">
This option determines whether or with what priority a secure SSL (TLS) TCP/IP connection will be negotiated with the server.
</info-popover>
</div>
</div>
<div class="gf-form max-width-30" ng-if="ctrl.current.jsonData.sslmode != 'disable'">
<span class="gf-form-label width-10">SSL Root Certificate</span>
<input type="text" class="gf-form-input gf-form-input--has-help-icon" ng-model='ctrl.current.jsonData.sslRootCertFile' placeholder="SSL/TLS root cert file"></input>
<info-popover mode="right-absolute">
If the selected SSL mode requires a server root certificate, provide the path to the file here.
Be sure that the file is readable by the user executing the grafana process.
</info-popover>
</div>
<div class="gf-form max-width-30" ng-if="ctrl.current.jsonData.sslmode != 'disable'">
<span class="gf-form-label width-10">SSL Client Certificate</span>
<input type="text" class="gf-form-input gf-form-input--has-help-icon" ng-model='ctrl.current.jsonData.sslCertFile' placeholder="SSL/TLS client cert file"></input>
<info-popover mode="right-absolute">
To authenticate with an SSL/TLS client certificate, provide the path to the file here.
Be sure that the file is readable by the user executing the grafana process.
</info-popover>
</div>
<div class="gf-form max-width-30" ng-if="ctrl.current.jsonData.sslmode != 'disable'">
<span class="gf-form-label width-10">SSL Client Key</span>
<input type="text" class="gf-form-input gf-form-input--has-help-icon" ng-model='ctrl.current.jsonData.sslKeyFile' placeholder="SSL/TLS client key file"></input>
<info-popover mode="right-absolute">
To authenticate with a client SSL/TLS certificate, provide the path to the corresponding key file here.
Be sure that the file is <i>only</i> readable by the user executing the grafana process.
</info-popover>
</div>
</div>
<b>Connection limits</b>
@ -132,4 +155,3 @@
</p>
</div>
</div>