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authorAkihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>2020-09-30 18:57:37 +0900
committerAkihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>2020-09-30 18:59:39 +0900
commiteb56673b3b5e6ae40bc168592eef5f618ffce658 (patch)
treee508ccbb3f6b31b9fc01f19bfc1a1eb80c069dcc
parentb68b6f334d4a83de35d68cc359365b348e72ad6b (diff)
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rootless-cni-infra v3: fix cleaning up DNS entries
Fix "Old DNS entries are not cleaned up" by passing CNI_ARGS to `cnitool del`. Fix #7789 Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
-rw-r--r--contrib/rootless-cni-infra/Containerfile5
-rw-r--r--contrib/rootless-cni-infra/README.md1
-rwxr-xr-xcontrib/rootless-cni-infra/rootless-cni-infra9
3 files changed, 10 insertions, 5 deletions
diff --git a/contrib/rootless-cni-infra/Containerfile b/contrib/rootless-cni-infra/Containerfile
index 6bf70d644..dd80fda28 100644
--- a/contrib/rootless-cni-infra/Containerfile
+++ b/contrib/rootless-cni-infra/Containerfile
@@ -2,8 +2,7 @@ ARG GOLANG_VERSION=1.15
ARG ALPINE_VERSION=3.12
ARG CNI_VERSION=v0.8.0
ARG CNI_PLUGINS_VERSION=v0.8.7
-# Aug 20, 2020
-ARG DNSNAME_VESION=78b4da7bbfc51c27366da630e1df1c4f2e8b1b5b
+ARG DNSNAME_VESION=v1.0.0
FROM golang:${GOLANG_VERSION}-alpine${ALPINE_VERSION} AS golang-base
RUN apk add --no-cache git
@@ -34,4 +33,4 @@ COPY rootless-cni-infra /usr/local/bin
ENV CNI_PATH=/opt/cni/bin
CMD ["sleep", "infinity"]
-ENV ROOTLESS_CNI_INFRA_VERSION=2
+ENV ROOTLESS_CNI_INFRA_VERSION=3
diff --git a/contrib/rootless-cni-infra/README.md b/contrib/rootless-cni-infra/README.md
index 5aa13374b..c43b4cf49 100644
--- a/contrib/rootless-cni-infra/README.md
+++ b/contrib/rootless-cni-infra/README.md
@@ -22,3 +22,4 @@ The container images live on `quay.io/libpod/rootless-cni-infra`. The tags have
* `/run/rootless-cni-infra/${CONTAINER_ID}/pid`: PID of the `sleep infinity` process that corresponds to the allocated netns
* `/run/rootless-cni-infra/${CONTAINER_ID}/attached/${NETWORK_NAME}`: CNI result
+* `/run/rootless-cni-infra/${CONTAINER_ID}/attached-args/${NETWORK_NAME}`: CNI args
diff --git a/contrib/rootless-cni-infra/rootless-cni-infra b/contrib/rootless-cni-infra/rootless-cni-infra
index 5cb43621d..463254c7f 100755
--- a/contrib/rootless-cni-infra/rootless-cni-infra
+++ b/contrib/rootless-cni-infra/rootless-cni-infra
@@ -33,7 +33,7 @@ cmd_entrypoint_alloc() {
K8S_POD_NAME="$3"
dir="${BASE}/${ID}"
- mkdir -p "${dir}/attached"
+ mkdir -p "${dir}/attached" "${dir}/attached-args"
pid=""
if [ -f "${dir}/pid" ]; then
@@ -50,6 +50,7 @@ cmd_entrypoint_alloc() {
CNI_IFNAME="eth${nwcount}"
export CNI_ARGS CNI_IFNAME
cnitool add "${NET}" "/proc/${pid}/ns/net" >"${dir}/attached/${NET}"
+ echo "${CNI_ARGS}" >"${dir}/attached-args/${NET}"
# return the result
ns="/proc/${pid}/ns/net"
@@ -71,8 +72,12 @@ cmd_entrypoint_dealloc() {
exit 0
fi
pid=$(cat "${dir}/pid")
+ if [ -f "${dir}/attached-args/${NET}" ]; then
+ CNI_ARGS=$(cat "${dir}/attached-args/${NET}")
+ export CNI_ARGS
+ fi
cnitool del "${NET}" "/proc/${pid}/ns/net"
- rm -f "${dir}/attached/${NET}"
+ rm -f "${dir}/attached/${NET}" "${dir}/attached-args/${NET}"
nwcount=$(find "${dir}/attached" -type f | wc -l)
if [ "${nwcount}" = 0 ]; then