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Merged
craciunoiuc merged 1 commit into from
Mar 30, 2026
Merged

feat(examples): Merged the two mariadb examples into one #253

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0 mariadb11.7-volumes/50-server.cnf → mariadb/50-server.cnf
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128 changes: 92 additions & 36 deletions mariadb/Dockerfile
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@@ -1,45 +1,101 @@
FROM mariadb:11.2.2-jammy as build

ENV MARIADB_ROOT_PASSWORD="unikraft"

RUN /usr/bin/sed -i '/^[ \t]\+exec "\$@"/d' /usr/local/bin/docker-entrypoint.sh
RUN /usr/local/bin/docker-entrypoint.sh mariadbd
RUN /usr/bin/sed -i 's/^#\(user[ \t]\+\).*$/\1= root/g' /etc/mysql/mariadb.conf.d/50-server.cnf
RUN /usr/bin/sed -i 's/^#\(bind-address[ \t]\+\).*$/\1= 0.0.0.0/g' /etc/mysql/mariadb.conf.d/50-server.cnf
RUN /usr/bin/sed -i 's/^#skip-name-resolve/skip-name-resolve=ON/g' /etc/mysql/mariadb.conf.d/50-server.cnf

RUN mkdir -p /home/run/mysqld
FROM mariadb:11.7.2-noble AS build

FROM scratch

COPY --from=build /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt

# MariaDB binary
COPY --from=build /usr/sbin/mariadbd /usr/sbin/mariadbd
COPY --from=build /home/run/mysqld /run/mysqld

COPY --from=build /var/lib /var/lib
# MariaDB support binaries
COPY --from=build /usr/bin/mariadb \
/usr/bin/mariadb-install-db \
/usr/bin/mariadb-tzinfo-to-sql \
/usr/bin/my_print_defaults \
/usr/bin/

# MariaDB support files
COPY --from=build /run/mysqld /run/mysqld
COPY --from=build /etc/mysql /etc/mysql
COPY --from=build /usr/lib/mysql /usr/lib/mysql
COPY --from=build /usr/share/mariadb /usr/share/mariadb

# MariaDB libraries
COPY --from=build /lib/x86_64-linux-gnu/libpcre2-8.so.0 \
/lib/x86_64-linux-gnu/libcrypt.so.1 \
/lib/x86_64-linux-gnu/liburing.so.2 \
/lib/x86_64-linux-gnu/libsystemd.so.0 \
/lib/x86_64-linux-gnu/libz.so.1 \
/lib/x86_64-linux-gnu/libssl.so.3 \
/lib/x86_64-linux-gnu/libcrypto.so.3 \
/lib/x86_64-linux-gnu/libstdc++.so.6 \
/lib/x86_64-linux-gnu/libm.so.6 \
/lib/x86_64-linux-gnu/libgcc_s.so.1 \
/lib/x86_64-linux-gnu/libc.so.6 \
/lib/x86_64-linux-gnu/libcap.so.2 \
/lib/x86_64-linux-gnu/libgcrypt.so.20 \
/lib/x86_64-linux-gnu/liblz4.so.1 \
/lib/x86_64-linux-gnu/liblzma.so.5 \
/lib/x86_64-linux-gnu/libzstd.so.1 \
/lib/x86_64-linux-gnu/libgpg-error.so.0 \
/lib/x86_64-linux-gnu/libedit.so.2 \
/lib/x86_64-linux-gnu/libncurses.so.6 \
/lib/x86_64-linux-gnu/libtinfo.so.6 \
/lib/x86_64-linux-gnu/libbsd.so.0 \
/lib/x86_64-linux-gnu/libmd.so.0 \
/lib/x86_64-linux-gnu/

COPY --from=build /lib/x86_64-linux-gnu/libpcre2-8.so.0 /lib/x86_64-linux-gnu/libpcre2-8.so.0
COPY --from=build /lib/x86_64-linux-gnu/libcrypt.so.1 /lib/x86_64-linux-gnu/libcrypt.so.1
COPY --from=build /lib/x86_64-linux-gnu/liburing.so.2 /lib/x86_64-linux-gnu/liburing.so.2
COPY --from=build /lib/x86_64-linux-gnu/libpmem.so.1 /lib/x86_64-linux-gnu/libpmem.so.1
COPY --from=build /lib/x86_64-linux-gnu/libsystemd.so.0 /lib/x86_64-linux-gnu/libsystemd.so.0
COPY --from=build /lib/x86_64-linux-gnu/libz.so.1 /lib/x86_64-linux-gnu/libz.so.1
COPY --from=build /lib/x86_64-linux-gnu/libssl.so.3 /lib/x86_64-linux-gnu/libssl.so.3
COPY --from=build /lib/x86_64-linux-gnu/libcrypto.so.3 /lib/x86_64-linux-gnu/libcrypto.so.3
COPY --from=build /lib/x86_64-linux-gnu/libstdc++.so.6 /lib/x86_64-linux-gnu/libstdc++.so.6
COPY --from=build /lib/x86_64-linux-gnu/libm.so.6 /lib/x86_64-linux-gnu/libm.so.6
COPY --from=build /lib/x86_64-linux-gnu/libc.so.6 /lib/x86_64-linux-gnu/libc.so.6
# Loader
COPY --from=build /lib64/ld-linux-x86-64.so.2 /lib64/ld-linux-x86-64.so.2
COPY --from=build /lib/x86_64-linux-gnu/libndctl.so.6 /lib/x86_64-linux-gnu/libndctl.so.6
COPY --from=build /lib/x86_64-linux-gnu/libdaxctl.so.1 /lib/x86_64-linux-gnu/libdaxctl.so.1
COPY --from=build /lib/x86_64-linux-gnu/liblzma.so.5 /lib/x86_64-linux-gnu/liblzma.so.5
COPY --from=build /lib/x86_64-linux-gnu/libzstd.so.1 /lib/x86_64-linux-gnu/libzstd.so.1
COPY --from=build /lib/x86_64-linux-gnu/liblz4.so.1 /lib/x86_64-linux-gnu/liblz4.so.1
COPY --from=build /lib/x86_64-linux-gnu/libcap.so.2 /lib/x86_64-linux-gnu/libcap.so.2
COPY --from=build /lib/x86_64-linux-gnu/libgcrypt.so.20 /lib/x86_64-linux-gnu/libgcrypt.so.20
COPY --from=build /lib/x86_64-linux-gnu/libgcc_s.so.1 /lib/x86_64-linux-gnu/libgcc_s.so.1
COPY --from=build /lib/x86_64-linux-gnu/libudev.so.1 /lib/x86_64-linux-gnu/libudev.so.1
COPY --from=build /lib/x86_64-linux-gnu/libuuid.so.1 /lib/x86_64-linux-gnu/libuuid.so.1
COPY --from=build /lib/x86_64-linux-gnu/libkmod.so.2 /lib/x86_64-linux-gnu/libkmod.so.2
COPY --from=build /lib/x86_64-linux-gnu/libgpg-error.so.0 /lib/x86_64-linux-gnu/libgpg-error.so.0

# User database
COPY --from=build /etc/passwd /etc/passwd
COPY --from=build /etc/shadow /etc/shadow

# Entrypoint scripts
COPY --from=build /usr/local/bin/docker-entrypoint.sh /usr/local/bin/docker-entrypoint.sh
COPY --from=build /docker-entrypoint-initdb.d /docker-entrypoint-initdb.d

# Support binaries for entrypoint script
COPY --from=build /bin/sh /bin/sh
COPY --from=build /bin/bash /bin/bash
COPY --from=build /usr/bin/date /usr/bin/date
COPY --from=build /usr/bin/awk /usr/bin/awk
COPY --from=build /usr/bin/id /usr/bin/id
COPY --from=build /usr/bin/mkdir /usr/bin/mkdir
COPY --from=build /usr/bin/find /usr/bin/find
COPY --from=build /usr/bin/kill /usr/bin/kill
COPY --from=build /usr/bin/chown /usr/bin/chown
COPY --from=build /usr/bin/chmod /usr/bin/chmod
COPY --from=build /usr/bin/ls /usr/bin/ls
COPY --from=build /usr/bin/sed /usr/bin/sed
COPY --from=build /usr/bin/uname /usr/bin/uname
COPY --from=build /usr/bin/cat /usr/bin/cat
COPY --from=build /usr/bin/sleep /usr/bin/sleep
COPY --from=build /usr/bin/pwgen /usr/bin/pwgen
COPY --from=build /usr/local/bin/gosu /usr/local/bin/gosu
COPY --from=build /bin/mount /bin/mount

# Support files
COPY --from=build /etc/alternatives /etc/alternatives
COPY --from=build /usr/share/zoneinfo /usr/share/zoneinfo

# Libraries for support binaries
COPY --from=build /lib/x86_64-linux-gnu/libtinfo.so.6 \
/lib/x86_64-linux-gnu/libc.so.6 \
/lib/x86_64-linux-gnu/libsigsegv.so.2 \
/lib/x86_64-linux-gnu/libreadline.so.8 \
/lib/x86_64-linux-gnu/libmpfr.so.6 \
/lib/x86_64-linux-gnu/libgmp.so.10 \
/lib/x86_64-linux-gnu/libm.so.6 \
/lib/x86_64-linux-gnu/libselinux.so.1 \
/lib/x86_64-linux-gnu/libacl.so.1 \
/lib/x86_64-linux-gnu/libmount.so.1 \
/lib/x86_64-linux-gnu/libblkid.so.1 \
/lib/x86_64-linux-gnu/

# Wrapper script
COPY ./wrapper.sh /usr/local/bin/wrapper.sh

# Mariadb configuration file
COPY ./50-server.cnf /etc/mysql/mariadb.conf.d/50-server.cnf
6 changes: 3 additions & 3 deletions mariadb/Kraftfile
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Expand Up @@ -3,10 +3,10 @@ spec: v0.6
runtime: base-compat:latest

labels:
cloud.unikraft.v1.instances/scale_to_zero.policy: "off"
cloud.unikraft.v1.instances/scale_to_zero.stateful: "false"
cloud.unikraft.v1.instances/scale_to_zero.policy: "idle"
cloud.unikraft.v1.instances/scale_to_zero.stateful: "true"
cloud.unikraft.v1.instances/scale_to_zero.cooldown_time_ms: 1000

rootfs: ./Dockerfile

cmd: ["/usr/sbin/mariadbd", "--user=root", "--log-bin"]
cmd: ["/usr/local/bin/wrapper.sh"]
21 changes: 20 additions & 1 deletion mariadb/README.md
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Expand Up @@ -24,7 +24,7 @@ export UKC_METRO=fra
When done, invoke the following command to deploy this app on Unikraft Cloud:

```bash
kraft cloud deploy -p 3306:3306/tls -M 1Gi .
kraft cloud deploy -M 1Gi -p 3306:3306/tls --env MARIADB_ROOT_PASSWORD="unikraft" .
```

The output shows the instance address and other details:
Expand Down Expand Up @@ -95,6 +95,25 @@ When done, you can remove the instance:
kraft cloud instance remove mariadb-w2g2z
```

> **Tip:**
> This example uses the [`idle` scale-to-zero policy](https://unikraft.com/docs/api/platform/v1/instances#scaletozero_policy) by default (see the `labels` section in the `Kraftfile`).

## Using volumes

You can use [volumes](https://unikraft.com/docs/platform/volumes) for data persistence for your MariaDB instance.
For that you would first create a volume:

```console
kraft cloud volume create --name mariadb-store --size 512
```

Then start the MariaDB instance and mount that volume:

```bash
kraft cloud deploy -M 1Gi -p 3306:3306/tls --env MARIADB_ROOT_PASSWORD="unikraft" --volume mariadb-store:/var/lib .
```


## Customize your app

To customize the app, update the files in the repository, listed below:
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0 mariadb11.7-volumes/wrapper.sh → mariadb/wrapper.sh
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1 change: 0 additions & 1 deletion mariadb11.7-volumes/.dockerignore
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1 change: 0 additions & 1 deletion mariadb11.7-volumes/.gitignore
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101 changes: 0 additions & 101 deletions mariadb11.7-volumes/Dockerfile
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12 changes: 0 additions & 12 deletions mariadb11.7-volumes/Kraftfile
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39 changes: 0 additions & 39 deletions mariadb11.7-volumes/README.md
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