feat(buckets): add CRYOSTAT_BUCKETS for pre-created buckets

Dockerfile

@@ -12,7 +12,7 @@ RUN dnf install -y go git make gettext \
     && popd
 
 FROM registry.access.redhat.com/ubi8/ubi-micro:${runner_version}
-COPY --from=builder /usr/bin/envsubst /root/go/bin/weed /root/seaweedfs/docker/entrypoint.sh /usr/bin/
+COPY --from=builder /usr/bin/envsubst /root/go/bin/weed /usr/bin/
 COPY ./cryostat-entrypoint.bash /usr/bin/
 COPY seaweed_conf.template.json /etc/seaweed_conf.template.json
 ENTRYPOINT ["/usr/bin/cryostat-entrypoint.bash"]

cryostat-entrypoint.bash

@@ -15,7 +15,40 @@ set -xe
 cfg="$(mktemp)"
 envsubst '$CRYOSTAT_ACCESS_KEY $CRYOSTAT_SECRET_KEY' < /etc/seaweed_conf.template.json > "${cfg}"
 
-exec /usr/bin/entrypoint.sh \
-    server -dir="${DATA_DIR:-/tmp}" \
+function waitForStartup() {
+    echo "cluster.check" | timeout "${BUCKET_CREATION_STARTUP_SECONDS:-30}"s weed shell 1>/dev/null 2>/dev/null || true
+    sleep "${BUCKET_CREATION_DELAY_SECONDS:-5}"
+}
+
+function createBucket() {
+    echo "s3.bucket.create -name $1" | timeout "${BUCKET_CREATION_TIMEOUT_SECONDS:-5}"s weed shell
+}
+
+function createBuckets() {
+    waitForStartup
+    for name in "$@"; do
+        createBucket "${name}"
+    done
+}
+
+names=()
+for i in $(echo "$CRYOSTAT_BUCKETS" | tr ',' '\n'); do
+    len="${#i}"
+    if [ "${len}" -lt 3 ]; then
+        echo "Bucket names must be at least 3 characters"
+        exit 1
+    fi
+    if [ "${len}" -gt 63 ]; then
+        echo "Bucket names must be at most 63 characters"
+        exit 1
+    fi
+    names+=("${i}")
+done
+
+createBuckets "${names[@]}" &
+
+exec weed -logtostderr=true server \
+    -dir="${DATA_DIR:-/tmp}" \
+    -master.volumePreallocate="${VOLUME_PREALLOCATE:-true}" -volume.max="${VOLUME_MAX:-0}" -master.volumeSizeLimitMB="${VOLUME_SIZE_LIMIT_MB:-4096}" \
     -s3 -s3.config="${cfg}" \
     "$@"