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Colin Walters cgwalters

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@openshift and @coreos engineer at @RedHatOfficial

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Red Hat, Inc.
Wayland, MA, USA
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@cgwalters

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coreos/rpm-ostree

⚛📦 Hybrid image/package system with atomic upgrades and package layering

C 429 114
ostreedev/ostree

Operating system and container binary deployment and upgrades

C 441 165
containers/bubblewrap

Unprivileged sandboxing tool

C 1.3k 123
git-evtag

Extended verification for git tags

C 91 11
systemd/systemd

The systemd System and Service Manager

C 7.3k 2.4k
openshift/machine-config-operator

Go 118 195

2,799 contributions in the last year

Activity overview

Contributed to coreos/coreos-assembler, ostreedev/ostree, coreos/fedora-coreos-config and 5 other repositories

Contribution activity

November 1, 2020

cgwalters has no activity yet for this period.

October 2020

cgwalters/oc Go Oct 29
cgwalters/content-resolver-input Oct 22

Created a pull request in openshift/machine-config-operator that received 16 comments

node-controller: Support an annotation to hold updates

Today the MCO arbitrarily chooses a node to update from the candidates. We want to allow admins to avoid specific nodes entirely. (Aside: This repl…

+86 −75 • 16 comments

Fix two minor clippy bits Oct 30
Parse old "0.1" format installed state format Oct 28
component: More porting to openat Oct 27
Use new openat-ext APIs for writing files Oct 27
component: Add error prefixing Oct 26
Rework sysroot/statefile locking Oct 23
main: Fix sysroot lock target for install Oct 23
Release 0.2.0 Oct 14
Drop requirement for BOOTUPD_ACCEPT_PREVIEW=1 Oct 13
Release 0.1.3 Oct 13
main: Use unwrap_or_default() Oct 13
Fix clippy lints Oct 13
model: Deny unknown saved state fields Oct 8
Drop operating system from status, print client side Oct 7
model: Also validate serialized status Oct 7
main: Gather status even if no components are installed Oct 7
coreos: Add timestamp to aleph version Oct 7
daemon: Log all requests at debug level Oct 7
ci: Remove unnecessary outer stage{} Oct 7
Implementation of adoption Oct 6
status: Fix indentation of CoreOS aleph image ID Oct 6
status: Print message if nothing is installed Oct 6
Rename tests/e2e → tests/e2e-update Oct 6
Use a lot more systemd hardening features Oct 6
main: Add more error context Oct 6
Some pull requests not shown.

daemon: Rewrite some core initramfs-overlay logic in Rust Oct 30
OWNERS: extend/reorder approvers section Oct 30
upgrader: Fix potential use of NULL value Oct 30
Release 2020.6 Oct 30
composepost: Fix to use write_all() Oct 30
rust: Use Borrow<GString> in a few places Oct 29
treefile: Directly write to String Oct 29
Disable `boot-location: new` test Oct 29
Remove ffi_view_str/ffi_new_string functions Oct 29
rust: Enable lto by default Oct 28
WIP: rewrite livefs (in Rust) Oct 28
Update to openat-ext 0.1.8, use new file writing API Oct 27
compose: Print a warning with boot-location: new Oct 22
ci/compose: Move successful tests into their own dir Oct 22
Add --enable-rojig, disable by default Oct 22
sysroot: Fix usage of sd_journal_send on 32 bit Oct 22
Make /run a directory in scripts Oct 20
daemon: Defer reload to an idle Oct 14
client: Close DBus connection before calling reload Oct 14
sysroot: Log when forcibly closing a transaction Oct 14
transaction: Port to declare-and-initialize style Oct 14
transaction: Unlock more reliably at txn finish Oct 14

kola: Fix various golint warnings Oct 29
entrypoint: Ensure we use modules for golint Oct 22
Use build ref or commit, drop "ref_is_tmp" hack Oct 21
Support COSA_NO_KVM=1 Oct 15
kola: Support config.fcc for external tests Oct 14
Write out a ref with the build ID Oct 14
Add an image-default.yaml, pass JSON to create_disk.sh Oct 13
cmdlib: Ensure overlay files have read-only executables Oct 13
virt-install: Only allocate Builds if --image is not passed Oct 5
build: Remove local overrides lock when removing RPMs Oct 2

WIP: Add an eln-devel branch Oct 26
lockfile: Bump bootupd Oct 26
manifests/bootupd: `mkdir /run` for now Oct 23
overlay: Enable bootupd.socket by default Oct 14
manifests/bootloader: Drop armhfp Oct 13
manifest: Drop ostree-grub2 from ppc64le bootloader Oct 13
Drop bits in overlay to chmod (use cosa fix), add test Oct 13
ci: Use the exttests container Oct 9
overlay/boot-mount-generator: Mount /boot{,efi} read-only,nodev,nosuid Oct 2
overlay/coreos-boot-mount-generator: Small code simplification Oct 2

openshift/os: Add a basic Prow job Oct 20
release-controller: Also sync nfv repo Oct 19
release-controller: Document RHEL8 repos Oct 15
coreos/cosa-exttests: New container with tests Oct 9

Add basic CI script Oct 19
Document and standardize on rpm-repo names used by api.ci Oct 15
download-extensions: Avoid duplicating repo enablement list Oct 15
Publish redhat-coreos config sources Oct 9

travis: Add a 32 bit build Oct 15
deploy: Remove (transfer none) from fd arg Oct 13
Release 2020.7 Oct 13
libglnx: Bump to master Oct 5

Fall back to writing a regular file without `O_TMPFILE` Oct 27
Two small commits Oct 27
Add APIs to atomically replace a file Oct 25

coreos: Fix bootupd name Oct 27
coreos: Add bootupd Oct 22

Add `oc ignition convert3` Oct 29

Add `openshift-install ignition convert` Oct 23

Don't print when a module is explicitly omitted (by default) Oct 16

tests/extended/OWNERS: add ashcrow to approvers Oct 13

rpm_ostree: Use rename_all = kebab-case Oct 2

Add Keylime HashList generation support OSTree Style Oct 29
kola: clean up unused plog Oct 29
mantle: clean up code base Oct 29
[4.4]create_disk: remove immutable bit for s390x Oct 27
Dockerfile: blow out cache to force full Quay rebuild Oct 26
entrypoint: fix broken vendoring Oct 23
cmd-fetch: assuage ShellCheck Oct 22
[4.5]create_disk: remove immutable bit for s390x Oct 22
kola: Bump default instance type to m5.large Oct 21
Use build ref or commit, drop "ref_is_tmp" hack Oct 21
Run COSA as an OpenShift custom build strategy Oct 15
[WIP] mantle/kola/tests/misc: Add test for checking dead-end release info Oct 14
docs/kola: mention external tests are preferred Oct 14
Add Keylime HashList generation support Oct 14
cmd-fetch: better ignore cosa overrides by default Oct 14
metal: add new virtio-channel for switching boot order Oct 9
buildextend-live: drop --legacy-pxe option Oct 5
mantle: fix podman.workflow stop test Oct 5
[4.4] Skip testiso for POWER Oct 5
mantle: make kola use ecdsa SSH keys Oct 1

lib/fetch-curl: Unref timeout source Oct 27
Add support for ETag and Last-Modified headers for summary and summary.sig Oct 22
lib: add missing GI annotation Oct 19
docs: Fix various typos Oct 19
ostree-prepare-root: print st_dev and st_ino as 64-bit ints Oct 15
ci: Make Packit ignore downstream patches Oct 7
lib/deploy: Don't leak fd when checksumming dtbs Oct 7
docs: Fix URL in Jekyll _config.yml Oct 5
lib/deploy: Add support for overlay initrds Oct 2
docs: Add GitHub Pages support Oct 2
Avoid need to download remote config when pulling Oct 1

daemon: Rewrite some core initramfs-overlay logic in Rust Oct 30
daemon/syscore: push livefs introspection to Rust Oct 29
Add new `ex initramfs-etc` command Oct 28
Update to openat-ext 0.1.8, use new file writing API Oct 27
Create Dependabot config file Oct 19
rust: Update deps Oct 19
build(deps): bump anyhow from 1.0.32 to 1.0.33 in /rust Oct 13
README.md: Keep it short and sweet Oct 1

Add some more error-prefixing Oct 26
backend/statefile: add a write-lock guard for statefile updates Oct 20
github: add dependabot config Oct 14
OWNERS: Update to match current CoreOS updates & remoting team Oct 5
cargo: drop library crate, for now Oct 5
cli: add flag to control logging level Oct 1

troubleshooting: Add instructions for enabling kdump Oct 20
storage: Add disk layout section Oct 7
Document the usage of toolbox Oct 2

cli/deadend: rework errors with relevant context Oct 19
cincinnati: swap order of dead-end refreshing logic Oct 14
cli: split subcommands logic out of main Oct 14

src: add remove_file_optional() Oct 8
cargo: bump nix to latest version (0.18) Oct 5

single-node production deployments Oct 23

jobs/kola-{aws,gcp}: escape $ for bash env Oct 22

systemd/firstboot-checkin: order before first-boot-complete.target Oct 19

backdoor: allow avoiding iopl permission errors Oct 7

Defer IDGenerator initialization until first use Oct 1

Created an issue in rpm-software-management/rpm that received 3 comments

option to disable fsync

For rpm-ostree, we rely on ostree for transactionality - ostree does fsync (or not) per its configuration. As best I can tell, rpm doesn't offer an…

3 comments

Fix updating bootupd 0.1 systems Oct 27
also store metadata alongside content Oct 6
implement BIOS (grub) Oct 1

switch from 9p to virtiofs Oct 28

[API change] use builder pattern for tempfiles Oct 27

something off in libdnf repodata caching Oct 22

Do a basic build + kola run on PRs Oct 20

deploy: Add support for providing config overlay for `/etc` Oct 15

pkexec logic is a bad idea Oct 2

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