sia: setup docker with sia-antfarm for test #4514

Always pull the latest Sia Antfarm docker image
Add wait for Sia renter to become upload ready

Co-authored-by: Filip Rysavy <fil@siasky.net>

backend/sia/sia.go

@@ -4,8 +4,6 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
-	"github.com/rclone/rclone/fs/config"
-	"github.com/rclone/rclone/lib/encoder"
 	"io"
 	"net/http"
 	"net/url"
@@ -13,6 +11,9 @@ import (
 	"strings"
 	"time"
 
+	"github.com/rclone/rclone/fs/config"
+	"github.com/rclone/rclone/lib/encoder"
+
 	"github.com/pkg/errors"
 	"github.com/rclone/rclone/backend/sia/api"
 	"github.com/rclone/rclone/fs"

fstest/testserver/init.d/TestSia

@@ -0,0 +1,45 @@
+#!/bin/bash
+
+set -e
+
+NAME=Sia
+
+. $(dirname "$0")/docker.bash
+
+start() {
+  docker run --rm -d --name $NAME \
+    --publish 127.0.0.1:9980:9980 \
+    nebulouslabs/siaantfarm
+
+    # pull latest remote image (do not use latest local image)
+    docker pull nebulouslabs/siaantfarm:latest
+
+    # start antfarm with the default config
+    docker run --rm -d --name "$NAME" \
+            -p "${SIA_CONN}:${SIA_PORT}" \
+            nebulouslabs/siaantfarm:latest
+
+    # wait until Sia test network is up, the Sia renter forms contracts on the
+    # blockchain and the renter is upload ready
+    until wget --user-agent="Sia-Agent" -q -O - "${SIA_CONN}/renter/uploadready" | grep '"ready":true'
+    do
+        sleep 1
+    done
+
+    # confirm backend type in the generated rclone.conf
+    echo "type=sia"
+    # override keys in the Sia section of generated rclone.conf
+    echo "api_url=http://${SIA_CONN}/"
+    # hint test harness where to probe for connection
+    echo "_connect=${SIA_CONN}"
+}
+
+stop() {
+    if status ; then
+        docker logs "$NAME" >> sia-test.log 2>&1
+        docker kill "$NAME"
+        echo "${NAME} stopped"
+    fi
+}
+
+. $(dirname "$0")/run.bash