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-rw-r--r--contrib/build-using-docker/README.md25
1 files changed, 17 insertions, 8 deletions
diff --git a/contrib/build-using-docker/README.md b/contrib/build-using-docker/README.md
index 63b7182..ec571e0 100644
--- a/contrib/build-using-docker/README.md
+++ b/contrib/build-using-docker/README.md
@@ -8,10 +8,18 @@ configure/make/install becomes a nightmare. I found it to be easier to have a
Dockerfile to build on a totally unrelated machine (but where I have the needed
privileges) and then just copy-paste the built result over to where I need it.
+WARN: Default configuration uses an alpine base image that means build will
+ dynamically link to musl libc and so won't run on most other systems.
+ This is because for a quick-n-dirty walktrough about what this tool does
+ this is ways enough. Consult "Other targets" further down and configure a
+ base image that fits your needs.
-## Setup variable to reduce annoying repetitions
+
+## Setup basic stuff to reduce annoyance
```sh
+mkdir /tmp/some-empty-dir
+cd /tmp/some-empty-dir
IMG=bulk-ln-showcase:latest
```
@@ -44,17 +52,18 @@ sudo docker run --rm -ti "${IMG:?}" sh
## Other targets
The dockerfile is parameterized and should work for other systems too. For
-example to compile for debian we could use command like below. May set *IMG*
-differently if you need to keep multiple images.
+example to compile for debian we could use example command as below.
+
+To build for other systems it should be enough to adjust below command.
```sh
curl -sSL http://git.hiddenalpha.ch/bulk-ln.git/plain/contrib/build-using-docker/Dockerfile | sudo docker build . -f - -t "${IMG:?}" \
- --build-arg PARENT_IMAGE=debian:buster-20220622-slim \
+ --build-arg PARENT_IMAGE=debian:9-slim \
--build-arg PKGS_TO_ADD="curl gcc git make libc-dev ca-certificates tar" \
--build-arg PKGS_TO_DEL="curl gcc git make libc-dev" \
- --build-arg PKGINIT="apt update" \
- --build-arg PKGADD="apt install -y --no-install-recommends" \
- --build-arg PKGDEL="apt purge -y" \
- --build-arg PKGCLEAN="apt clean"
+ --build-arg PKGINIT="apt-get update" \
+ --build-arg PKGADD="apt-get install -y --no-install-recommends" \
+ --build-arg PKGDEL="apt-get purge -y" \
+ --build-arg PKGCLEAN="apt-get clean"
```