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Reduce container size. Add steps to use ramdisk to README.md

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Strip and compress binaries using upx
This commit is contained in:
Dmitry Nezhevenko 2024-12-21 15:47:58 +01:00
parent aab9d1dd12
commit 82c941c0ec
2 changed files with 26 additions and 2 deletions
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6
Dockerfile
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@ -26,6 +26,8 @@ WORKDIR /go/src/tailscale
COPY tailscale/go.mod tailscale/go.sum ./
RUN go mod download
RUN apk add --no-cache upx
# Pre-build some stuff before the following COPY line invalidates the Docker cache.
RUN go install \
github.com/aws/aws-sdk-go-v2/aws \
@ -48,12 +50,14 @@ ARG VERSION_GIT_HASH=""
ENV VERSION_GIT_HASH=$VERSION_GIT_HASH
ARG TARGETARCH
RUN GOARCH=$TARGETARCH go install -ldflags="\
RUN GOARCH=$TARGETARCH go install -ldflags="-w -s\
-X tailscale.com/version.Long=$VERSION_LONG \
-X tailscale.com/version.Short=$VERSION_SHORT \
-X tailscale.com/version.GitCommit=$VERSION_GIT_HASH" \
-v ./cmd/tailscale ./cmd/tailscaled
RUN upx /go/bin/tailscale && upx /go/bin/tailscaled
FROM alpine:3.18
RUN apk add --no-cache ca-certificates iptables iproute2 ip6tables bash openssh curl jq

22
README.md
View file

@ -107,7 +107,7 @@ add name="tailscale" src="/tailscale" dst="/var/lib/tailscale"
6. Create the container
The container can be created via the container registry (Step 6a) or using the `tailscale.tar` file generated by building the Docker image locally (Step 6b).
The container can be created via the container registry (Step 6a) or using the `tailscale.tar` file generated by building the Docker image locally (Step 6b or 6c).
6a. Container registry
@ -130,6 +130,26 @@ Using the file `tailscale.tar` generated by running `build.sh`, upload the file
If you want to see the container output in the router log add `logging=yes` to the container add command.
6b. Tar archive file (routers without external storage)
For routers without USB port (tested on hAP ax2) it's possible to use ramdisk to temporary store `tailscale.tar` file.
Firstly make sure that there is no old version of container installed. Firstly create `tmpfs` disk:
```
/disk add type=tmpfs tmpfs-max-size=200M
```
Upload `tailscale.tar` file to `tmp1/` disk (or move it after uploading to root folder)
Then start container like in 6b:
```
/container add file=tmp1/tailscale.tar interface=veth1 envlist=tailscale root-dir=containers/tailscale mounts=tailscale start-on-boot=yes hostname=mikrotik dns=8.8.4.4,8.8.8.8
```
Router will unpack tarball to internal storage. Once container is created it's ok to remove tarball from `tmpfs`. Also,
container will be preserved after router reboot.
### Start the Container
Ensure the container has been extracted and added by verifying `status=stopped` using `/container/print`