ci: try to resolve network issues

.ci/image-all.sh

@@ -47,4 +47,6 @@ echo
 buildah images --all --noheading --format 'table {{.ID}} {{.Name}}:{{.Tag}} {{.Size}} {{.CreatedAtRaw}}' --filter "reference=${IMAGE_NAME}"
 echo
 
-buildah manifest push --all "${IMAGE}" "docker://${IMAGE}"
+buildah manifest push \
+    --retry 7 --retry-delay 60s \
+    --all "${IMAGE}" "docker://${IMAGE}"

.ci/image.sh

@@ -11,8 +11,8 @@ set -ef
 export BASE_IMAGE="${BASE_IMAGE:?}-${GOARCH:?}"
 
 buildah pull \
+    --retry 7 --retry-delay 60s \
     --platform "${TARGET_PLATFORM}" \
-    --retry 3 --retry-delay 30s \
 "${BASE_IMAGE}"
 
 ## build image

.ci/sync-all.sh

@@ -22,12 +22,7 @@ rm -rf "${oci_dir}" ; mkdir "${oci_dir}"
 r=0
 
 img_copy() {
-    for i in $(seq 1 3) ; do
+    skopeo copy --retry 7 --retry-delay 60s --all "$@"
-        if skopeo copy --all "$@" ; then
-            return 0
-        fi
-    done
-    return 1
 }
 
 while : ; do

.ci/sync-latest.sh

@@ -19,12 +19,7 @@ rm -rf "${oci_dir}" ; mkdir "${oci_dir}"
 r=0
 
 img_copy() {
-    for i in $(seq 1 3) ; do
+    skopeo copy --retry 7 --retry-delay 60s --all "$@"
-        if skopeo copy --all "$@" ; then
-            return 0
-        fi
-    done
-    return 1
 }
 
 while : ; do